Question

Find f(x)+g(x), given f(x)=x^2-8 and g(x)=-2-x^2

Answer 1

$\left(x^2-8\right)+\left(-2-x^2\right)=-10$

$\left(x^2-8\right)+\left(-2-x^2\right)$

$=x^2-8-2-x^2$

$=x^2-x^2-8-2$

$=-8-2$

$=-10$