SOLUTION: evaluate 8x^2+4x, for x=4

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Question 550666: evaluate 8x^2+4x, for x=4
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
8x^2+4x


8(4)^2+4(4)


8(16)+4(4)


128+16


144



So 8x^2+4x = 144 when x = 4