question\nperform the operation.\n$(6x^{2}+2x)-(-9x^{2}-10x)$

question\nperform the operation.\n$(6x^{2}+2x)-(-9x^{2}-10x)$
Answer
Explanation:
Step1: Remove parentheses
When we have $a-(b + c)=a - b - c$. So, $(6x^{2}+2x)-(-9x^{2}-10x)=6x^{2}+2x + 9x^{2}+10x$.
Step2: Combine like - terms
Combine the $x^{2}$ terms and the $x$ terms. $(6x^{2}+9x^{2})+(2x + 10x)=(6 + 9)x^{2}+(2 + 10)x$. $15x^{2}+12x$.
Answer:
$15x^{2}+12x$