Question 326078
{{{(red(8x^2) + green(5x)-3)+ (red(12x^2) +green(7x)-14)}}}
<pre><b>
Combine the red terms getting {{{red(8x^2+12x^2=20x^2)}}}

Combine the green terms getting{{{green(5x+7x=12x)}}}

Combine the black terms getting {{{-3-14=-17}}}

So the answer is {{{20x^2+12x-17}}}

Edwin</pre>