# Factoring using Difference of Two Squares:Practice Problems

Direction: Factor out each binomial completely. Work it out on paper first then scroll down to compare your solution.

Problem 1: ${x^2} - 100$

Problem 2: $25{x^2} - 1$

Problem 3: $4{x^2} - 9{y^2}$

Problem 4: $16{x^4} - {y^4}$

Problem 5: ${\left( {2x - 1} \right)^2} - 49$

Problem 6: $4{x^2}{y^4} - 36{x^4}{y^2}$

ANSWER KEY

SOLUTION TO PROBLEM #1

SOLUTION TO PROBLEM #2

SOLUTION TO PROBLEM #3

SOLUTION TO PROBLEM #4

SOLUTION TO PROBLEM #5

SOLUTION TO PROBLEM #6

You might also be interested in: