7$x^{2}$ +5x+3/5+3x+2x $x^{2}$ 2=81/32
7x-20=4x+16
find x
-6|-12x|-2
7x $a^{b}$ 2+5x+3/5+3x+2x $a^{b}$ 2=81/32
x^2-y^2-4x-2y+3
3x^2+18x+9
write down a square number that is between 20 and 40
find the taylor series generated by the following function at x=a f(x)=2x³+x²+3x-8, a=1
800000000000000000000000000000000+1
$\sqrt{8000}$