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OpenStudy (anonymous):
Evaluate xy^3-xy if x=3 and y= -2 a. 18 b. 30 c. -18 d. 4 e. none of the above
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OpenStudy (anonymous):
i got 30
OpenStudy (eric_d):
wrong
OpenStudy (eric_d):
Plug in the given values into the expression
OpenStudy (anonymous):
the only other answer i got was -18 i tried 2 methods.
OpenStudy (anonymous):
Plug in 3 for x and -2 for y, then evaluate. |dw:1410747462974:dw|
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