2x -2 squared = 0
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2x squared can best be describe as some variable being double and then squared.
x^2+2x^2=3x^2
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Half of 2x squared is x squared. To find half of a term, you divide the coefficient by 2 and keep the variable and exponent the same. In this case, half of 2 is 1, so the expression simplifies to x squared.
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