Quadratic Equations By Factoring Worksheet With Answer Key Page 3
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104-3 Solving Quadratic Equations by Factoring
23.
SOLUTION:
Factor out 3.
2
2
2
Use the identity a
– b
= (a + b)(a – b) to factor x
– 4.
Therefore,
25.
SOLUTION:
Factor 12c from the first two terms and –d from the last two terms.
Factor 4g + 3f from the two terms.
Therefore,
.
27.
SOLUTION:
Find the factors of –22 whose sum is –9.
2(–11) = –22 and 2 + (–11) = –9
Write –9x as 2x –11x.
Factor x from the first two terms and –11 from the last two terms.
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Page 3
Factor x + 2 from the two terms.
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