Answer:
1.
(a+2)(a−2)
3. (3x+4y)(3x−4y)
5.
7. 4(2b2+5)(−2b2+5)
9.
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Answers & Comments
Answer:
1.
(a+2)(a−2)
3. (3x+4y)(3x−4y)
5.
7. 4(2b2+5)(−2b2+5)
9.