Squaring a Binomial Help

Squaring a Binomial

Another special product results from squaring a binomial. This can be done by using the two methods shown previously; however, a short-cut rule can be used. It is:

(a + b) ² = a ² + 2ab + b ²

(a - b) ² = a ² - 2ab + b ²

In words, whenever you square a binomial, square the first term and then multiply the product of the first and second terms by 2 and square the last term .

Examples

Squaring a Binomial Practice Problems

Practice

1. (x + 1) ²

2. (x - 6) ²

3. (2x + 5) ²

4. (4x + 7) ²

5. (8x - 3) ²

Answers

Practice problems for these concepts can be found at: Operations With Monomials And Polynomials Practice Test.