Question

Which factors can be multiplied together to make the trinomial 5x2 + 8x – 4? Select two options.

(x + 1)
(2x + 1)
(x + 2)
(5x + 1)
(5x – 2)

Answer 1

c) (x +2)

e) ( 5 x -2)

Explanation:

Explanation:-

Given equation 5 x² + 8 x – 4

The factors of - 20 = 10 × - 2

⇒ 5 x ² + 10 x - 2 x - 4

⇒ 5 x ( x + 2) - 2 ( x + 2)

⇒ (5 x - 2 ) ( x + 2)

The multiplies of given equation

5 x² + 8 x – 4 = (5 x - 2 ) ( x + 2)