Question 20204
you just add together like terms
Example:{{{(2x^2+2x+1)+(3x^2+x+5)}}}
look at individual terms{{{2x^2+3x^2=5x^2}}}
{{{2x+x=3x}}}and1+5=6
put them back together
{{{5x^2+3x+6}}}notice the indices(power)does not change
Also this is a very simple example
with others take careful notice of signs
Pete