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Determining if an Expression Can Be Rewritten in Factored Form

8.8.4 Determining if an Expression Can Be Rewritten in Factored Form

8.8.4 • Determining if an Expression Can Be Rewritten in Factored Form

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Write each expression in factored form. If it is not possible, write "not possible."

1.

a 2 − 36 a 2 − 36

Compare your answer:

(a+6)(a−6)(a+6)(a−6)

2.

49 − 25 b 2 49 − 25 b 2

Compare your answer:

(7+5b)(7−5b)(7+5b)(7−5b)

3.

c 2 + 9 c 2 + 9

Compare your answer:

Not possible because this is the sum of two squares.

4.

100 81 − 16 d 2 100 81 − 16 d 2

Compare your answer:

(109+4d)(109−4d)(109+4d)(109−4d)