x+3xy+y=12
values of (x,y)
Solve 𝑦(𝑦 + 1)(𝑦 + 3)(𝑦 + 4) + 2 = 0
2.5*3.72
945/3600
3x -7=4x+8
5 $a^{2}$ - ab - 2 $b^{2}$
-10
2.7_0.19
$x^{2}$ - $x$ - 12
