Question

The function h is defined by H(x)=x^2-6 find h(5x). H(5x)=

Answer 1

$h(x)\ \ =\ x^2-6\\.\ \ \downarrow\ \ \ \ \ \ \ \ \downarrow\\h(5x)=(5x)^2-6=(5)^2(x)^2-6=25x^2-6$