SOLUTION: add and subtact the following
1) (-7x^2+5xy-2y^2)+(3x^2-5xy-4y^2)
2) (6r^3-8rs+4s^2)-(-5r^3+3rs+s^2)
on question 1 I got -4x^2-6t^2
on question 2 I got r^3+11rs-9s^2
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Algebra.Com
Question 164352: add and subtact the following
1) (-7x^2+5xy-2y^2)+(3x^2-5xy-4y^2)
2) (6r^3-8rs+4s^2)-(-5r^3+3rs+s^2)
on question 1 I got -4x^2-6t^2
on question 2 I got r^3+11rs-9s^2
are these correct
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
add and subtact the following
1) (-7x^2+5xy-2y^2)+(3x^2-5xy-4y^2)
2) (6r^3-8rs+4s^2)-(-5r^3+3rs+s^2)
on question 1 I got -4x^2-6t^2
on question 2 I got r^3+11rs-9s^2
are these correct ?
------------------------
#1 -4x^2 - 7y^2
#2 11r^3 -11rs + 3s^2
=======================
Cheers,
StanH.
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