Question

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The function h is defined by h(x) = x^2+2

Find h(5a)

Answer 1

Answer:

$\sf h(5a) = 25a^2+2$

given:

$\sf h(x) = x^2+2$

solve:

In order to find h(5a), we have to replace 5a with x

$\hookrightarrow \sf h(5a) = (5a)^2+2$

$\hookrightarrow \sf h(5a) = (5a)(5a)+2$

$\hookrightarrow \sf h(5a) = 25a^2+2$