SOLUTION: Hi! Could someone please help me to know if I am correct on this equation? Add:(2x^2-9xy+y^2)+(-8x^2-9xy-y^2)+(x^2+xy-3y^2) I obtain the answer: -5x^2-17xy-3y^2. Am I corr

Question 468513: Hi! Could someone please help me to know if I am correct on this equation?
Add:(2x^2-9xy+y^2)+(-8x^2-9xy-y^2)+(x^2+xy-3y^2)
I obtain the answer: -5x^2-17xy-3y^2.
Am I correct?
Thanks! Huge final exam due soon!!
Answer by bucky(2189) (Show Source): You can put this solution on YOUR website!
Yes, you are correct!
As a check, your work should show:
.

.
and
.

.
Good luck on your exam.
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