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Equivalent expressions SAT question

Math · Advanced Math · Easy · Answer it here, explanation included.

Which expression is equivalent to parenthesis, 2 x squared minus 4, close parenthesis, minus, parenthesis, negative 3 x squared, plus 2 x, minus 7, close parenthesis ?

ExplanationShow

Choice A is correct. The given expression open parenthesis, 2 x squared, minus 4, close parenthesis, minus, open parenthesis, negative 3, x squared, plus 2 x, minus 7, close parenthesis can be rewritten as 2 x squared, minus 4, plus 3 x squared, minus 2 x, plus 7. Combining like terms yields 5 x squared, minus 2 x, plus 3.

Choices B, C, and D are incorrect and may be the result of errors when applying the distributive property.

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