What is the sum of (2x2 + 5x -3) and (-3x2 -10 + x2)

Question

asked Nov 1, 2023 26.6k views

1 Answer

Flavio Vilante · Answer 1 · 2023-11-08T00:56:14+0000

Question: what is the sum of (2x^2 + 5x -3) and (-3x^2 -10 + x2): that is the sum of

$(2x^2+5x-3)and(-3x^2-10+x^2\text{)}$

Solution:

We want to know:

$S=(2x^2+5x-3)+(-3x^2-10+x^2\text{)}$

we put together similar terms:

$S=(2x^2-3x^2+x^2)\text{ + (5x) + (-3-10)}$

Now, we add the coefficients of each variable:

$S=(0x^2)\text{ + (5x) + (-13)}$

that is equivalent to say

$S=\text{5x -13}$

Then the sum is

$S=\text{5x -13}$