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OpenStudy (anonymous):
Evaluate 7x - (2x)^2 + x^3 for x = -2.
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OpenStudy (anonymous):
Just plug in -2 for every x
OpenStudy (anonymous):
7(-2)-(2(-2))^2+(-2)^3
OpenStudy (anonymous):
7(-2) -(-4)^2 + (-2)^3 = -14 - 16 -8 = -38
OpenStudy (anonymous):
plug -2 everywhere there is an x
OpenStudy (anonymous):
7(-2) - [2(-2)]^2 + (-2)^3 -14 - [-4]^2 -8 -14 - 16 - 8 -38
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