Question 175805
I will help you with #6.
{{{2x^3y-5xy^2+5xy+3y-4}}} evaluated at x=-2 and y=3
{{{2(-2)^3(3)-5(-2)(3)^2+5(-2)(3)+3(3)-4}}}
{{{2(-8)(3)-5(-2)(9)-30+9-4}}}
{{{-48+90-30+9-4=17}}}