Question

How do you combine like terms in `(5x ^ { 2} y - 7) + ( 2x y ^ { 2} + 6x ^ { 2} y ^ { 2} - 4)`?

Answer 1

`5x^2y+2xy^2 +6x^2y^2 color(blue)(-11)`

Explanation:

Remove the brackets first. As there is a + sign between them, the terms all stay the same.

`5x^2y color(blue)(-7) +2xy^2 +6x^2y^2 color(blue)(-4)`

Identify any like terms and collect them:

`5x^2y+2xy^2 +6x^2y^2 color(blue)(-11)`