Question

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) Mark this and return Save and Exit

Answer 1

(5x-2) and (x+2)

Explanation:

Answer 2

the factors are (5x-2) and (x+2)

Explanation:

5x^2 + 8x – 4

first we multiply 5 and -4= -20

product is -20 and sum is +8

find out two factors whose product is -20 and add upto +8

10 * (-2) = 20

10 +(-2)= 8

5x^2 +10x-2x – 4

group the terms and factor out GCF

(5x^2 +10x)+(-2x – 4)

5(x+2) -2(x+2)

(5x-2)(x+2)

the factors are (5x-2) and (x+2)