Question

Someone help pleasee

Answer 1

Explanation:

g(x) = 3f(-2x)

= 3*([-2x)² + (-2x) - 2)

= 3 (4x² - 2x - 2)

= 3 * (4x² - 4x +2x - 2) {Rewrite the middle term}

= 3 *[ 4x(x - 1) + 2(x - 1)]

= 3* [ (x -1) *(4x + 2)]

= 3(x - 1)(4x + 2)

x - 1 = 0 ; 4x + 2 = 0

x = 1 ; 4x = -2

x =
`(-2)/(4)=(-1)/(2)`

Roots: x = 1 , (-1/2)