Factorising Quadratics by Luke Collins

Factorising quadratics

shahmuradia — 2019-01-24 10:38:49 UTC

Paul x^2 - 3x - 10

rafatjoop — 2019-01-24 10:38:49 UTC

1.Find factors of the last numbers
2.These two numbers should sum to the middle number.
3.Put an x at the beginning of each bracket.
4. The two factors that work for the last and middle number put into each bracket (x - 5 ) ( x + 2 )
5.Expand to see if it is your original question.

Matthew F

fum1 — 2019-01-24 10:38:50 UTC

To factorise quadratics, you must find the factors of the last integer that add up to the integer before. Then add an 'X' at the beginning of both brackets! You can now factorise!!!

Owen

daveyo — 2019-01-24 10:38:56 UTC

first you make two brackets next to each other.
second you put the the letter at the start of both brackets
third you find all the products that make the number at the end of the sequence.
forth you find the product of the number that also adds together to make the number in the middle of the sequence.
last you put them numbers in the end of both brackets (it doesn't matter which way round it is)
then what ever the symbol in front of the numbers are you put that in the brackets.

Neve

carvilln — 2019-01-24 10:38:58 UTC

Step One -> Find the factors of the last number wich is 10

CW

wrightc21 — 2019-01-24 10:38:59 UTC

First you write out what has been given to you. Second you take the number on the right side and find all of it's factors. Third you find the factor that make up the middle number. Finally, you use all the data you have found out to put the numbers into brackets.

Meya

kocznerm — 2019-01-24 10:39:00 UTC

First you must look at the first number so "x2" so to get that you must do x times x. So put "(x+...)(x+...)
Second see what 2 numbers times by each other is equal to 10 add if you add it must be 7. 5 x 2= 10 and 5+2=7 . So you can write it as (x+2)(x+5) and that is your answer.

emily chiweda-----------------example-11x+34x+3

chiwedae — 2019-01-24 10:39:03 UTC

1)multiply the first and last number(11x3=33)
2)then find the out the factors of the number (33)
3)find the factor pair that adds up to make the middle number(middle number is 34 the factor pair33 and 1 add together to make 34)
4)put them in brackets

CORY

colemanc10 — 2019-01-24 10:39:08 UTC

1. First you need to find the factors
2. Then The two numbers should equal the middle number
3.

Alfie and Kiera

harveya9 — 2019-01-24 10:39:12 UTC

Jack

bottj — 2019-01-24 10:39:16 UTC

Edward

Edward240Et — 2019-01-24 10:39:18 UTC

Leonie

baverstockl — 2019-01-24 10:39:25 UTC

First find factors of the last numbers
then the numbers should add up to the middle number

raph

smali_maurelr — 2019-01-24 10:39:31 UTC

first you write out the factors of 10.
next you find the correct one which multiplies to 10 and adds to 7
then you would write you bracket
(x+2)(x+5)

zamzam

2019-01-24 10:39:31 UTC

example- 3x +14X+10
The firstt step is to 10 and 14 to get 24. Then you have to find the factors of 24. Then next you have to see which pair of factors add up to 14

jeef is here

schifanok — 2019-01-24 10:39:49 UTC

factorising quadratics with max

arnoldm3 — 2019-01-24 10:39:50 UTC

1) first you find the common factors
2)

megan

evansm24 — 2019-01-24 10:40:03 UTC

first you find the factors of the right number and then you put it into brackets. to put them into brackets you need to use the letter in your sum at the beginning like (x+ ) and if you did factors of 8 it could be (x+4)

Lena

2019-01-24 10:40:03 UTC

1) Find the factors of the last number (coefficient)
2) Find the pair of factors from this list that add up to the digit before the coefficient (eg: 12x)
3) Begin to form your expression by putting the variable at the beginning of the bracket
4)

teaching an alien how to factorise quadratics, lily

lilyxmirza — 2019-01-24 10:40:05 UTC

drtiodrt

Factorising is the reverse of expanding brackets, so it is, for example, putting 2x² + x - 3 into the form (2x + 3)(x - 1). This is an important way of solving quadratic equations.The first step of factorising an expression is to 'take out' any common factors which the terms have. So if you were asked to factorise x² + x, since x goes into both terms, you would write x(x + 1) .

brown_struttr — 2019-01-24 10:40:22 UTC

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Eddie

Edward240Et — 2019-01-24 10:40:22 UTC

First you have to copy down the sum that has been given to you . after that you find the hcf and of 10

woltersr — 2019-01-24 10:40:52 UTC

find the factors of the last number find the pair of multiples that add up to the middle number. put x in the brackets and then put your multiples next to them

factorising

aldossaria — 2019-01-24 10:40:58 UTC

Neve

carvilln — 2019-01-24 10:41:25 UTC

step one -> find the factors for the last number which is 10 in this example.
step two -> write out all the possible answers and then see if any of your answers would be able to add up to the middle number which is 5
step three ->

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brown_struttr — 2019-01-24 10:43:06 UTC

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brown_struttr — 2019-01-24 10:43:31 UTC

Leonie

baverstockl — 2019-01-24 10:43:54 UTC

remember the foil technique
F- First terms
O

The first step of factorising an expression is to 'take out' any common factors which the terms have. So if you were asked to factorise x² + x, since x goes into both terms, you would write x(x + 1) . This video shows you how to solve a quadratic equation by factoring.[PDF]

rodgersha — 2019-01-24 10:44:50 UTC

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brown_struttr — 2019-01-24 10:46:41 UTC