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					Simplify each expression.
1.
(4x2 + x + 3) + (5x2 + 9x – 2) (1 point)

           20x2 + 9x + 1
           9x2 + 10x +1
           20x4 + 9x2 – 6
           9x2 + 36x – 8

2.
(7b2 – 5b + 3) – (b2 + 8b – 6) (1 point)

           7b2 – 40b – 18
           6b2 – 13b + 9
           8b2 + 3b – 3
           7b2 + 40b +18

3.
3w(12w – 1) – 8w (1 point)

           15w2 – 24w
           36w2 – 40w
           28w – 1
           36w2 – 11w

4.
6k(4k + k2) + 9k(2k – 6k2) (1 point)

           110k2 + 15k – 5
           –48k3 + 21k2
           –48k3 + 42k2
           28k2 + 24k

5.
(x + 3)(x – 5) (1 point)

           2x – 2
           x2 – 15
           x2 – 2x – 15
           x2 – 8x – 2

6.
(2n3 – 5)(6n2 + n) (1 point)

           12n5 + 2n4 – 30n2 – 5n
           12n5 – 5n
           8n6 – 11n2 – 5n
           8n5 + 2n3 – 30n2 + n

Factor each polynomial.
7.
12y2 – 10 (1 point)

           2(6y2 – 5)
           60y2(5 – 6y2)
           5(2y – 2)
           12y2(1 – 2y)

8.
5t6 + 25t3 – 10t (1 point)

           5t6(1 + 5t3 – 2t5)
           10t(2t5 + 15t2 – 1)
           50t6(10 + 2t3 – 5t5)
           5t(t5 + 5t2 – 2)

9.
18v4 + 27v3 + 36v2 (1 point)

           9v2(2v2 + 3v + 4)
           27v4(9 + v + 9v2)
           18v4(1 + 9v + 2v2)
           3v(6v4 + 9v3 + 12v2)
Your teacher will grade your response to ensure you receive proper credit for your answer.

10.
Simplify the expresssion.

(3c + 2)(c – 5)

(3 points)
ssion.

(3c + 2)(c – 5)

(3 points)

				
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posted:8/31/2010
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