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Let x = the number

x^2 + x = x

x^2 = 0

x = 0

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Q: What number squared plus itself equals itself?
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What is 7X squared plus 2X squared equal to?

It equals 53X- a number is squared when it is multiplied by itself, so 7X by 7X = 49X. 2X by 2X =4X, so 49X + 4X is 53X.


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