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^2-25 = 0
x^2-25 = 0
x^2-25 = 0
1*x^2 = 25 // : 1
x^2 = 25
x^2 = 25 // ^ 1/2
abs(x) = 5
x = 5 or x = -5
x in (-oo:-5) U (-5:5) U (5:+oo)
(2*x)/(x^2-25) = 0
2*x = 0 // : 2
x = 0
x = 0
| 1n+2=-14-4n | | Y^3-2y^2=o | | 9x^2-54x+9y^2+72y=-144 | | 2y^2+4y-7=y^2+1 | | 11x+8y=-24 | | y=0.69x+4.29 | | 3x+7-x=3 | | ln(6x^2+5x)=0 | | -4(x-2)=4x | | 4x^2-25y^2=11 | | 4x+4(2x-15)=60 | | 4x^2+36x-47=0 | | 33=y+39 | | -5=r-6 | | 5(n+7)=75 | | 36*30x=45 | | (-66)+(-13)=c | | -3(1-n)=2(2+1) | | 6.4/.02 | | 6=1g+10-3g | | y=4x^2-2x+10 | | 4z-6-5z= | | 16(n-7)=-4(n+38) | | 0.5a-6=0.2a | | -3.5q+1.4=-20.6-1.3q | | 5x-2=6 | | 4(n-4)=-2(n-19) | | A+(-47)=68 | | -n^2-15n+50=0 | | 2(4-k)+k=7 | | 12(n-2)=-4(n+10) | | 2x/5-×/3=5 |