Question

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

Answer 1

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

Answer 2

( 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

Answer 3

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

Answer 4

Harkirat's answer is correct. I got sloppy.

Answer 5

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

Answer 6

im a lil confused

Answer 7

Ok. Shoot.