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Algebra
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OpenStudy (anonymous):
what is the value of the expression -4x2 when x equals 2
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OpenStudy (crabbyoldgamer):
Do you mean \[4x^2?\]
OpenStudy (anonymous):
ya
OpenStudy (crabbyoldgamer):
Substitute 2 in for the 4: \[-4x^2 \] when x = 2 becomes \[-4*(2)^2 = -4*4 = -16\]
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