Question

Find (fg) (x)
f(x)= 4x2 +x4
g(x)= root x2+4

Answer 1

`(fg)(x) = f(x)\cdot g(x) \\~\\(fg)(x) = \left(4x^2 +x^4\right)\cdot√(x^2+4) \\~\\(fg)(x) = \left(4x^2 +x^4\right)\cdot\left(x^2+4\right)^{(1)/(2)}`

a)