Question

Which of the binomials below is a factor of this trinomial?

x2 + x - 20







A.

x - 4








B.

x + 2








C.

x - 2








D.

x + 4

Answer 1

x-4

Answer 2

x^2 + x - 20
= x^2 + 5x - 4x -20
= x(x+5) -4(x+5)
= (x-4)(x+5)
Can you get the answer now?

Answer 3

thanks

Answer 4

\[\LARGE{\color{red}{x-4}.} \]