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OpenStudy (anonymous):
What is the value of -9r - 7 when r = 2
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OpenStudy (studygurl14):
Plug in -9(2) - 7
OpenStudy (studygurl14):
-18 - 7 = ?
OpenStudy (anonymous):
-25
OpenStudy (anonymous):
What is the simplified expression for –2a2b + a2 – 5ab + 3ab2 – b2 + 2(a2b + 2ab)
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