body{margin:0;} noscript{z-index: 10000; position: fixed; display: block; height: 100%; width: 100%; background: #fff;} noscript .fa{font-size: 40px; display:block; color: #daa520;} noscript div{margin-top: 6%; padding-left: 20px; padding-right: 20px; text-align: center;} ! You must have JavaScript enabled to use this site.

McGraw Hill Integrated II, 2012

MH

McGraw Hill Integrated II, 2012 View details

8. Differences of Squares

Continue to next subchapter

Exercise 58 Page 62

Start by writing the expression in a^2-b^2 form.

- k(k+6)

Practice makes perfect

We will start by writing the given expression in a^2-b^2 form. Then, we will simplify it.

9-(k+3)^2

Write as a power

3^2-(k+3)^2

a^2-b^2=(a+b)(a-b)

(3+(k+3))(3-(k+3))

▼

Simplify

Distribute -1

(3+k+3)(3-k-3)

Add and subtract terms

(k+6)(- k)

The factored form of the expression is k(k+6). 9-(k+3)^2 = - k(k+6)

Subchapter links

Exercises p.60-63