13+(-16)
(x+y)(x+3y)
differentiate
y-lny=10x^3-6x^2+4
(\sqrt((9x+27)))/(2x+10)+(\sqrt((9x+27)))/(z+5)=1
x^3+y^3=4
\dfrac{9}{(6x+11)(x+3)}-\dfrac{3x}{(3x+10)(x+3)}=
1+1
x + 3( 2x - 3y + z ) +7z
85.87 * 17.99
F(X)= 4 $x^{2}$ * 16x+16 at x=4
