(3.0*10^-9)²
(4x-6)-2x=(x-6)+10+14
(3 0*10-9)²
factorize (x-2)(x-9)
(3 0*10-9)2
(x-3)-(x+2)+2(x-1)-5=0
g - 10h + 13g + 20h
expand and simplify (4y+3)(2y-2)
4x+2y=10
5x+3y=12
factorize x^2+10x+25
