module 21.3 using special factors to solve equations · 1/12/2017 · monomial factor, such as...
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Module 21.3
Using Special FactorsTo Solve Equations
How can you use special products to aidin solving quadratic equations by factoring?
P. 1009
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P. 1011
Leading Coefficient
Is 1
Leading Coefficient
Is Not 1
Leading Coefficient
Is 1
Leading Coefficient
Is Not 1
9𝑥2 + 12𝑥 + 4 = 3𝑥 + 2 3𝑥 + 2= (3𝑥 + 2)2
9𝑥2 − 12𝑥 + 4 = 3𝑥 − 2 3𝑥 − 2= (3𝑥 − 2)2
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P. 1011
Note that the first and last terms are perfect squares.
Note that the first and last terms are perfect squares.
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P. 1012
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P. 1012
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P. 1013
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P. 1013
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P. 1014
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P. 1014
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P. 1015
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P. 1016
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Here are two squares and their areas. In terms of x, how much taller is the left square than the right one? Explain your reasoning.
𝒙𝟐 + 𝟏𝟐𝒙 + 𝟑𝟔
16
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