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October 21, 2014

Homework Help: Algebra Please Check answers

Posted by Rae Rae on Sunday, April 5, 2009 at 4:32pm.

Directions: Determine whether each trinomial is a perfect square. If so, factor it.

2. 4a^2+4a+1
Answer: 2(a+1)^2

3. 9m^2+15m+25
Answer: no

4. d^2-22d+121
Answer: (d-11)^2

Directions: Determine whether each binomial is the difference of squares. If so, factor it.

5. x^2-16
Answer: (x-4)(x+4)

6. y^2-20
Answer: no

7. 16m^2-25n^2
Answer: (m+4)-(5+n)

8. 8a^2-18
Answer: (7+ab)-(7-ab)

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