McGraw Hill Integrated II, 2012
MH
McGraw Hill Integrated II, 2012 View details
Study Guide and Review
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Exercise 28 Page 82

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)
x^2-5^2
x^2-25