Question

Help!!!!!!!!!!!!!!!!!! Look at the picture.

Answer 1

Answer:

$f(a^{2})=7(a^{4})-8$

Step-by-step explanation:

we have

$f(x)=7x^{2}-8$

we know that

$f(a^{2})$

Is the value of f(x) for $x=a^{2}$

so

substitute the value of x in the function

$f(a^{2})=7(a^{2})^{2}-8$

$f(a^{2})=7(a^{4})-8$