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OpenStudy (anonymous):
Evaluate. Show all work please, 9-x(-1+7x^2) for x= -2
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OpenStudy (anonymous):
\[9 - 2 \times ( -1 + 7 \times 2^2) = 9 - 2 \times ( -1 + 7 \times 4) = 9 - 2 \times (27) = 9 - 54 = -45\]
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