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

4. Special Products

Continue to next subchapter

Exercise 9 Page 31

Apply the difference of two squares.

x^2-25

Practice makes perfect

Notice that the given expression is the multiplication of conjugates. This allows us to use a shorter method of multiplying the terms than the normal distribution process.

(x+5)(x-5)

ExpandDiffSquares

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

x^2-5^2

Calculate power

x^2-25

Subchapter links

Exercises p.30-33