Question

Which expression is equivalent to (3x^2+3x-3)-(6x^2-4x-2)
?

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A.

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B.

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C.

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D.

Answer 1

First distribute the minus sign: (3x^2+3x-3) - (6x^2-4x-2) = 3x^2+3x-3 -6x^2+4x+2.
Combine like terms: (3x^2-6x^2) + (3x+4x) + (-3+2) = -3x^2 + 7x - 1.

So the equivalent expression is -3x^2 + 7x - 1.