Question 86558
1) (2X+5)+(3X+1)+(4X+2)=2X+5+3X+1+4X+2=9X+8
2) -(3X+5Y)=-3X-5Y
   -(4M-3N)=-4M+3N
3) (-3X)^-2=1/9X^2
4) 5Y-4+2Y^2-8Y=2Y^2-3Y-4
IF YOU HAVE TO SOLVE THIS EQUATION USE THE QUADRATIC EQUATION:
{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}