simplify : ( 7x^2 + 3y^2 + y - 4) - ( 2x^2 -5x -6y^2 -3y -1)

Question

simplify : ( 7x^2  + 3y^2  + y - 4) - ( 2x^2  -5x  -6y^2 -3y -1)

anonymous · Answer

Ok. We have two separate groups, which we need to combine so we can reduce.
You do this buy multiplying the negative all the way through the second group and then combining like terms.
(7x^2 + 3y^2 +y -4) -2x^2 +5x +6y^2 +3y +1
Now we can remove the first set of paranthesis and combine like terms
7x^2 -2x^2 -3y^2 +6y^2 +y +3y -4 +1
5x^2 +3y^2 + 4y -3

anonymous · Answer

( 7x^2  + 3y^2  + y - 4) - ( 2x^2  -5x  -6y^2 -3y -1)

7x^2 - 2x^2 + 3y^2 + 6y^2 + 5x + y + 3y - 4 + 1

5x^2 + 9y^2 + 5x + 4y -3

anonymous · Answer

@DoinHomework
you missed 5x completely and made some errors of signs.........

anonymous · Answer

Harkirat's answer is correct. I got sloppy.

anonymous · Answer

no problem.....we all make mistakes some times    ☺

anonymous · Answer

im a lil confused

anonymous · Answer

Ok. Shoot.