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Factor the expression. 49b^2 42b 9 a. (7b 3)2 b. (–7b – 3)2 c. (7b – 3)2 d. (–7b 3)2
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May 18, 2017
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Factor the expression. 49b^2 42b 9
a. (7b 3)2
b. (–7b – 3)2
c. (7b – 3)2
d. (–7b 3)2
Mathematics
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David Nedrow
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David Nedrow
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If you would like to factor the expression 49b^2 + 42b + 9, you can do this using the following steps:
49b^2 + 42b + 9 = (7b + 3) * (7b + 3) = (7b + 3)^2 = 7^2b^2 + 2 * 3 * 7b + 3^2 = 49b^2 + 42b + 9
The correct result would be a.
(7b + 3)^2.
Christophe Chenel
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May 22, 2017
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Christophe Chenel
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