Question

Factor as the product of two binomial X^2-100=

Answer 1

x^2 - 100 = (x + 10) * (x - 10)

Explanation:

Recall that 100 is the perfect square of 10:

10^2 = 100

then we can use the formula for factorization of a difference of squares:

x^2 - 10^2 = (x + 10) * (x - 10)