2x-8=0
what is 5, 9, 12, 3, 7, 4, 15, 20 altogher
$4x^{2}$+12x+5=0
5a-7a
2.5% in fractions
$8x^{2}$-35=-18x
6x= $2x^{2}$ -7x+14
if (x-1) (x+2)=0
3*x - x^3 + 6.6 = 0
9*x^2-x-15=0
