If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
x^2-(4*x)+4 = 0
x^2-(4*x)+4 = 0
x^2-(4*x)+4 = 0
x^2-4*x+4 = 0
x^2-4*x+4 = 0
DELTA = (-4)^2-(1*4*4)
DELTA = 0
x = 4/(1*2)
x = 2 or x = 2
x in (-oo:2) U (2:+oo)
(2*x^2-8)/(x^2-(4*x)+4) = 0
(2*x^2-8)/(x^2-4*x+4) = 0
x^2-4*x+4 = 0
x^2-4*x+4 = 0
DELTA = (-4)^2-(1*4*4)
DELTA = 0
x = 4/(1*2)
x = 2 or x = 2
(x-2)^2 = 0
(2*x^2-8)/((x-2)^2) = 0
2*x^2 = 8 // : 2
x^2 = 4
x^2 = 4 // ^ 1/2
abs(x) = 2
x = 2 or x = -2
x in { 2}
x = -2
| 5x-x*x=15 | | 3a-10=5a | | 3+7q=5+6q | | 11n-3=10 | | 187-5x=40x+17 | | 4y+8=4(2y-2)-2(-16+8y) | | (4)-(3/k)-(1/k^2)=0 | | 4t+6=18 | | 5+6q=8+5q | | 3x+0.5=4x | | 9r^2-5=-607 | | -2(1-4a)=60 | | 3(x-2)+2x=3x+8 | | 2(5x-8)+3=-4x-13 | | 3x+(1/2)x | | 74p-5.3-9.2p=-2.6 | | 6y-3(y-1)=9 | | (4x-30)=2x+1 | | -2(4x+1)+10=-3-7 | | 12+20h-6=-5+25 | | 37+6x=5(6x-7) | | .5(3x+2)+7=-x-2 | | 19x-7=8+14x | | -4(3n-2)=56 | | (4x^2)+4x+11=0 | | 3/8y=-1/16 | | 9p+8=10p-7 | | 4(3+5h)-6=-5+2h | | 5x-x*x=9+6 | | 1/2(3x+2)+7=-x-2 | | -11(4)=56 | | 3x-2(x+4)=5x-28 |