Question 701150
Bases = x+3 and 2x-1
Height = x+4 
Area=(b1+b2/2)*h
[(x+3)+(2x-1)]/2*(x+4)
[3x+2]/2*(x+4)
[3x/2+1](x+4)
3x^2/2+x+12x/2+4
1.5x^2+x+6x+4
1.5x^2+7x+4 ans.