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Question Number 5892 by sanusihammed last updated on 04/Jun/16
![A = [−3 0 ] [ 1 5 ] And f(x) = 5x^2 − 7x + 8 Find f(A) please help.](Q5892.png)
$${A}\:\:=\:\:\left[−\mathrm{3}\:\:\:\:\:\mathrm{0}\:\right] \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\left[\:\:\:\:\mathrm{1}\:\:\:\:\:\mathrm{5}\:\right] \\ $$$${And}\:{f}\left({x}\right)\:=\:\mathrm{5}{x}^{\mathrm{2}} \:−\:\mathrm{7}{x}\:+\:\mathrm{8} \\ $$$$ \\ $$$${Find}\:{f}\left({A}\right) \\ $$$$ \\ $$$${please}\:{help}. \\ $$