Question

1. What is the GCF of the expression 5x^4–25x^2?

Answer 1

Factors of 5:

5,1

Factors of 25:

1,5,25

Factors of x⁴:

x⁴,x³,x²,x

Factors of x²:

x²,x

Therefore, the GCF is:

$5x^4-25x^2=5x^2(x^2-5)$

Answer:

$5x^2$