Question

Which factors can be multiplied together to make the trinomial 5x2 + 8x – 4? Check all that apply.

Answer 1

Which factors can be multiplied together to make the trinomial 5x2 + 8x – 4? Check all that apply.

(x + 1)

(2x + 1)

(x + 2)

(5x + 1)

(5x – 2)

Solution :

By multiplying (5x - 2) and (x + 2), the given trinomial will be obtain as follow. 
 (5x - 2) * (x + 2) = (5x * x) + (5x * 2) - (2 * x) - (2 * 2)
=  5x^2 + 10x - 2x - 4
= 5x^2 + 8x - 4

Answer 2

Answer:

Multiplying $(5x+2)$ and $(x+2)$ we can get the trinomial $5x^2+8x-4$.

Step-by-step explanation:

The given trinomial is,

$=5x^2+8x-4$

By middle term factorization,

$=5x^2+10x-2x-4$

$=5x(x+2)-2(x+2)$

$=(5x+2)(x+2)$

Therefore, multiplying $(5x+2)$ and $(x+2)$ we can get the trinomial $5x^2+8x-4$.