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OpenStudy (anonymous):
perform the indicated operation by removing the paraenthesis and combining like terms. (-7x^2-4) - (4x^2 + 4)
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OpenStudy (anonymous):
addition and subtraction are commutative, right? So you can move those terms around however you want, right?
OpenStudy (anonymous):
-11x^2-8
OpenStudy (anonymous):
So make that into (-7x^2 - 4x^2) -4 - 4
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