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OpenStudy (anonymous):
(-15b² - 7) - (-2b²) Do I need to multiply -15b² and -2b²? I get -17b² - 7. Is that right?
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OpenStudy (anonymous):
Nope there is a - sign in between so open those parenthesis and it would be |dw:1380467321048:dw| Note -(-) becomes + !!
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