Question: what is the sum of (2x^2 + 5x -3) and (-3x^2 -10 + x2): that is the sum of
[tex](2x^2+5x-3)and(-3x^2-10+x^2\text{)}[/tex]Solution:
We want to know:
[tex]S=(2x^2+5x-3)+(-3x^2-10+x^2\text{)}[/tex]
we put together similar terms:
[tex]S=(2x^2-3x^2+x^2)\text{ + (5x) + (-3-10)}[/tex]Now, we add the coefficients of each variable:
[tex]S=(0x^2)\text{ + (5x) + (-13)}[/tex]that is equivalent to say
[tex]S=\text{5x -13}[/tex]Then the sum is
[tex]S=\text{5x -13}[/tex]