McGraw Hill Integrated II, 2012
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McGraw Hill Integrated II, 2012 View details
Study Guide and Review
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Exercise 23 Page 81

x^2+4x-21

Practice makes perfect
We want to simplify the expression by multiplying the binomials. To do so we will apply the Distributive Property.
(x-3)(x+7)
x(x+7)-3(x+7)
x^2+7x-3(x+7)
x^2+7x-3x-21
x^2+4x-21