If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 18x + 81 = x Reorder the terms: 81 + 18x + x2 = x Solving 81 + 18x + x2 = x Solving for variable 'x'. Reorder the terms: 81 + 18x + -1x + x2 = x + -1x Combine like terms: 18x + -1x = 17x 81 + 17x + x2 = x + -1x Combine like terms: x + -1x = 0 81 + 17x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-81' to each side of the equation. 81 + 17x + -81 + x2 = 0 + -81 Reorder the terms: 81 + -81 + 17x + x2 = 0 + -81 Combine like terms: 81 + -81 = 0 0 + 17x + x2 = 0 + -81 17x + x2 = 0 + -81 Combine like terms: 0 + -81 = -81 17x + x2 = -81 The x term is 17x. Take half its coefficient (8.5). Square it (72.25) and add it to both sides. Add '72.25' to each side of the equation. 17x + 72.25 + x2 = -81 + 72.25 Reorder the terms: 72.25 + 17x + x2 = -81 + 72.25 Combine like terms: -81 + 72.25 = -8.75 72.25 + 17x + x2 = -8.75 Factor a perfect square on the left side: (x + 8.5)(x + 8.5) = -8.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
| 1/3x5x | | z^3=-46+9i | | (2x^2-2x-5x^3+2)-(4x^2-7x-5x^3+3)= | | 2[t-(2t+16)+14]=2(2+4) | | 5x/y•y•3•3•3/z•2•2 | | -5(t+2)-t-3=-6(t+5)+17 | | y-(x+5)+4=44 | | 4y(9)+9x=-36 | | 3x-(2x+4)=6x-49 | | y-(x+5)+4= | | 4y+9(-4)=-36 | | 2.5d=14.25 | | 0.9x+0.6x-9=-3 | | 50=350*R*16-12 | | 5/3y-10=-5 | | x/(.78-x)^2=4.95 | | 9=v-2 | | 1/2m=-9 | | 5(5x+1)=4x-9x | | 4+6n=3n+1 | | 7x-8y+36=0 | | 7x+8=2x+9 | | 3/4k--1/2=1/3 | | z/10=7 | | 7v+5(1-8v)=n | | x(.2)=400 | | -4-2=2 | | sqrt(54x^12)=0 | | 3z-z=3z-7+5z | | 3x-5x+2.5=-x-10 | | 3x-5x+2*5=-x-10 | | 15+b=28 |