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 = 0
x+2 = 0
x+2 = 0
x+2 = 0 // - 2
x = -2
x in (-oo:-2) U (-2:+oo)
(2*x^2+7*x+11)/(x+2) = 0
2*x^2+7*x+11 = 0
2*x^2+7*x+11 = 0
DELTA = 7^2-(2*4*11)
DELTA = -39
DELTA < 0
1 = 0
1/(x+2) = 0
x belongs to the empty set
| 2(12-3x)=-6+4x | | 3(2f+4)=5(2-d) | | 4y-2x+5y+7= | | 2x-5+3x=10-4 | | 2x-7=2x+1 | | 4x-1y=4 | | 4a+3c+5a-4= | | 10-7x+8=-6x | | ln(x-2)+ln(x)=ln(3) | | 4.68*10^8/2 | | (5x+32)=(7x+8) | | 4/15=n/100 | | 6n^3-3n^3+2n^4= | | -2(3-4x)=2x+22 | | 12(-4.33333333333)=-52 | | 12(-4.333333333)=-52 | | 12(-4.33333333)=-52 | | 12(-4.3333333333)=-52 | | 12(-4.33333)=-52 | | 12(-4.33)=-52 | | 12(-4.3)=-52 | | x/4=77/28 | | 2x+2x+3x=180 | | 2x+2x+3x=360 | | 6x+5x+4x+3x=360 | | x+27=4x | | 5(6a-3)= | | x+15=90 | | x+32=90 | | x+36+3x+4x=180 | | x+20+5x+2x=180 | | 2(6+-1.5y)+3y=12 |