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 = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
2*x+1/x-3 = 0
2*x^1+1*x^-1-3*x^0 = 0
(2*x^2-3*x^1+1*x^0)/(x^1) = 0 // * x^2
x^1*(2*x^2-3*x^1+1*x^0) = 0
x^1
2*x^2-3*x+1 = 0
2*x^2-3*x+1 = 0
DELTA = (-3)^2-(1*2*4)
DELTA = 1
DELTA > 0
x = (1^(1/2)+3)/(2*2) or x = (3-1^(1/2))/(2*2)
x = 1 or x = 1/2
x in { 1/2, 1}
x in { 1/2, 1 }
| (12)-(-15)= | | -4x=52 | | n/-2+2=-14 | | 21ab-14ax+15by-10xy=0 | | 42x^2-44x+10=0 | | 3x^2+15=-6x | | 18+(-27)= | | -5(9r+7)= | | 5(x-9)/4(x+9)/5 | | V=3x^3+9x^2+6x | | x^2+a=4 | | 400+3=112 | | 3x^2+15x+36=0 | | (-12)+(-27)= | | -5(t-2)+8t=9t-8 | | 5.8=x/2.2 | | x^3-5x-2x^2+10=0 | | -5t(t-2)+8t=9t-8 | | 6(y-6)/5=-4y | | 2x^5+2.5x=69 | | 7b+26=25+7b | | 3(2x-9)+2=6x-25 | | -50-3x=8x+19 | | 10x-2x^2=-4 | | 400-3=112 | | 7+c/9=16 | | 4x+6=-98-6x | | 2-8/9/3/2+1/3 | | 2x+3=2(x-1) | | k^5*k^4= | | 0.3=51 | | 2(x+4)/6=3x-2 |