Question

10/12
simplify the expression below.
$(2x^{2}+3y^{2})+(-8x^{2}+z^{2})+(10y^{2}-z^{2})$

Explanation:

Step1: Remove parentheses

$2x^2 + 3y^2 - 8x^2 + z^2 + 10y^2 - z^2$

Step2: Group like terms

$(2x^2 - 8x^2) + (3y^2 + 10y^2) + (z^2 - z^2)$

Step3: Combine like terms

$-6x^2 + 13y^2 + 0$

Answer:

$-6x^2 + 13y^2$