Question 190246
{{{3x^2-2y+7x^2-5y+3}}}

First Step: Combine like terms.


{{{3x^2+7x^2=10x^2}}}
{{{-5y+2y=-3y}}}


Second Step: Fit your like terms into the regular equation.


{{{10x^2-3y+3.}}}

Now you subsitute for the variables.


{{{10(2)^2-3(14)+3}}}
{{{20^2-42+3}}}
{{{400-42+3= 361}}}


Variables-x,y
Coefficents-10,3
Constant terms-3