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-(3*x)-18 = 0
x^2-16 = 0
x^2-(3*x)-18 = 0
x^2-(3*x)-18 = 0
x^2-3*x-18 = 0
x^2-3*x-18 = 0
DELTA = (-3)^2-(-18*1*4)
DELTA = 81
DELTA > 0
x = (81^(1/2)+3)/(1*2) or x = (3-81^(1/2))/(1*2)
x = 6 or x = -3
x^2-16 = 0
x^2-16 = 0
1*x^2 = 16 // : 1
x^2 = 16
x^2 = 16 // ^ 1/2
abs(x) = 4
x = 4 or x = -4
x in (-oo:-4) U (-4:-3) U (-3:4) U (4:6) U (6:+oo)
((x^2-(10*x)+24)/(x^2-(3*x)-18))*((x^2-9)/(x^2-16)) = 0
((x^2-10*x+24)/(x^2-3*x-18))*((x^2-9)/(x^2-16)) = 0
((x^2-10*x+24)*(x^2-9))/((x^2-3*x-18)*(x^2-16)) = 0
x^2-10*x+24 = 0
x^2-10*x+24 = 0
DELTA = (-10)^2-(1*4*24)
DELTA = 4
DELTA > 0
x = (4^(1/2)+10)/(1*2) or x = (10-4^(1/2))/(1*2)
x = 6 or x = 4
(x-4)*(x-6) = 0
x^2-3*x-18 = 0
x^2-3*x-18 = 0
DELTA = (-3)^2-(-18*1*4)
DELTA = 81
DELTA > 0
x = (81^(1/2)+3)/(1*2) or x = (3-81^(1/2))/(1*2)
x = 6 or x = -3
(x+3)*(x-6) = 0
((x-4)*(x-6)*(x^2-9))/((x+3)*(x-6)*(x^2-16)) = 0
( x-4 )
x-4 = 0 // + 4
x = 4
( x-6 )
x-6 = 0 // + 6
x = 6
( x^2-9 )
1*x^2 = 9 // : 1
x^2 = 9
x^2 = 9 // ^ 1/2
abs(x) = 3
x = 3 or x = -3
x in { 4}
x in { 6}
x in { -3}
x = 3
| 80-6= | | (x^2)-3x=40 | | 3F-24=B | | -2(4s-3)-6=-2(8s+5)-3 | | 11/17=x/8 | | 55.6-6.74= | | z^(-2/3) | | x^2+2x+7=15 | | -21=-16+p/5 | | B=3F-24 | | 5+3(9-4)=2(q+1) | | (3y^3)-(5y^2)-2y=0 | | 3p+9=13+2p | | 2.2+-6.1= | | 51+40/8*7 | | (15v^2)+29v-14=0 | | 9x-7=14+x | | 12(x+3)+12(x-3)=3(x^2-9) | | 2/7(15x+4)=1/2(9x-26)+12 | | -(9m-7)-3m=-137 | | 8h=w | | 3(x+1)-2x+3=5x+4(x+10) | | w=8h | | (15c^2)+22c-48=0 | | 0.11x+0.9(x-2)=0.01(2x-2) | | ((2z-16)/(121))/((z-8)/(22)) | | u/11=13/17 | | 3.014x+10-2.501x=31.18 | | 4(4x+5)=19x+2 | | 37+9(9)= | | 4x^6+6x^4+14x^3= | | 99=19x-124 |