f(x)=-1/2x+2 whats the perpendicular to this function?
f(x)=-1/2x+2 whats the paralel
3x/3
pasar -2x² + 4x + 2 a forma factorizada
2/x = 5/x+1
$81x^{7}$ + $63x^{9}$
y-x=n
different ways to get 2/3
1/7
a+a+b=20
