Question

Find x, if f (x) = g(x) where
(a) f(x) = x^4+ 2x^2, g(x) = 11x^2?​

Answer 1

Step-by-step explanation:

answer---

$3$

given:-

$f(x) = g(x)$

${x}^{4} + 2 {x}^{2} = 11 {x}^{2} \\ {x}^{4} = 9 {x}^{2} \\ \\ {x}^{2} = 9 \\ x = \sqrt{9 } = 3$