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when she multiplied she got 1 but it was supposed to be negative 1

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Where Theresa went wrong on was  when she multiplied a negative by a positive. She got  positive 1 but it's -1x1 which equals -1. If you love to hate you're a hater.

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The mistake that Theresa made was in the second row where she was suppose to put a addition sign instead of a subtraction sign

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Theresa went wrong on her multiplication

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Theresa went wrong on her multiplaction

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Theresa didn't multiply -1 with a positive 1. It should be -1+1.

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Theresa went wrong on her multiplication. She did -1x1=1 but it is

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she did wrong  that 1 was suppose to be a negative and 2x

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Theresa went wrong on her  multiplication. she did 1 but it suppose to be a negative

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When she put the ones in front of the   () 1(5x+3)-1(2x+1)
^             ^
When you add -1/1=  -1
that's what made here go wrong.

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The mistake was when she put a subtract sign instead a addition sign.

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Theresa put a minus sign when she was suppose to put a plus sign.

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What Theresa went wrong on is she   didn't do her multiplication wright. She multiped -1x1 and still got a positive 1 when it was suppose to be a negative 1

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Theresa went wrong on her multiplication. She did -1x1=1 but its suppose to be a negative 1