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they got the same exponet and variables

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They have to have the same exponent and variable

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They have to have the same exponent or base (x^2) and (2x^2) are like terms.

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Like terms need to have the same variables or even exponents for them to be considered like terms.

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they need to have the same exponent and variable and sign

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they have to have the same variable and exponent

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For terms to be alike they need the same variable and  exponent

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like terms need to have the same variables or power

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Terms need to have the same variable or exponent to be alike.

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Like Terms need to have the same variables and exponents in order to be identified as like term.

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they need to have the same exponent and variable

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In order to be alike, terms must have the same variables and exponents. An example to prove my claim would be x^2 + x^2 equals 2x^2 because they have like terms.

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They need to have the same letters. Example xyz. And if they have an exponet they have ti have the same letter.

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They need to share the same variables and exponents.