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OpenStudy (anonymous):
What is the value of the expression –5x^4 when x = –2? A. –40 B. –80 C. 40 D. 80
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OpenStudy (lucaz):
calculate first (-2)^4 you get 16, then multiply by -5, you -80
OpenStudy (lucaz):
just substitute x by -2 and calculate the expression
OpenStudy (anonymous):
@Nanalew
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