Posted by **Lauren** on Wednesday, April 14, 2010 at 8:34pm.

Peform each indicated operation and simplify. Can you please check my answers. Thank you.

A)(x^2+2x-3)+ (2x^2-x+1)

Answer: 3x^2+x-2

B) (-x^3+2x^2-5)+(x^2-x+6)

Answer:-x^3+3x^2-x+1

C) (3y^2-x+7)-(y^2-2x+3)

Answer:4y^2-3x+10

D)(2x^2-xy+y^2)-(-3x^2+xy+y^2)

Can you help me with the answer for this one Im confused. thanks

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