Question

Find x, if f(x) = g(x) where
f(x) = x+™ 2x^, g(x) = 11x^...... (™ is 4 and ^ is 2)​

Answer 1

Answer:

x=3 or x=-3

Step-by-step explanation:

f(x) = x⁴+2x²

g(x) = 11x²

f(x) =g(x)

x⁴+2x²=11x²

x⁴+2x²-11x²=0

x⁴-9x²=0

as we know,

a²-b²=(a+b)(a-b)

(x²+3x)(x²-3x) = 0

x²+3x=0 or x²-3x=0

x(x+3) =0 or x(x-3)=0

x+3=0 or x-3=0

x=-3 or x=3

x=3 or x=-3

HOPE IT HELPS U

PLEASE MARK AS BRAINLIAST ANSWER

Step-by-step explanation: