Question 102511
I'm assuming it reads


{{{(2a^2-3a+5)-(3a^2+8a-4)}}}


right?



{{{(2a^2-3a+5)-(3a^2+8a-4)}}} Start with the given equation



{{{2a^2-3a+5-3a^2-8a+4}}} Distribute the negative



{{{(2a^2-3a^2)+(-3a-8a)+(5+4)}}} Group like terms


{{{-a^2-11a+9}}} Combine like terms




So {{{(2a^2-3a+5)-(3a^2+8a-4)}}} simplifies to {{{-a^2-11a+9}}}