Posted by **margie (: !** on Wednesday, June 25, 2008 at 6:09pm.

If A=3x^2-2x-7 and B=x^2+9, then what is their sum, A+B?

a. 5x^2-2x+2

b. 4x^2-2x-2

c. 4x^2+2

d. 4x^2-2x+2

e. none of these

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