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 = 0 Reorder the terms: -81 + -18x + x2 = 0 Solving -81 + -18x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '81' to each side of the equation. -81 + -18x + 81 + x2 = 0 + 81 Reorder the terms: -81 + 81 + -18x + x2 = 0 + 81 Combine like terms: -81 + 81 = 0 0 + -18x + x2 = 0 + 81 -18x + x2 = 0 + 81 Combine like terms: 0 + 81 = 81 -18x + x2 = 81 The x term is -18x. Take half its coefficient (-9). Square it (81) and add it to both sides. Add '81' to each side of the equation. -18x + 81 + x2 = 81 + 81 Reorder the terms: 81 + -18x + x2 = 81 + 81 Combine like terms: 81 + 81 = 162 81 + -18x + x2 = 162 Factor a perfect square on the left side: (x + -9)(x + -9) = 162 Calculate the square root of the right side: 12.727922061 Break this problem into two subproblems by setting (x + -9) equal to 12.727922061 and -12.727922061.Subproblem 1
x + -9 = 12.727922061 Simplifying x + -9 = 12.727922061 Reorder the terms: -9 + x = 12.727922061 Solving -9 + x = 12.727922061 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + x = 12.727922061 + 9 Combine like terms: -9 + 9 = 0 0 + x = 12.727922061 + 9 x = 12.727922061 + 9 Combine like terms: 12.727922061 + 9 = 21.727922061 x = 21.727922061 Simplifying x = 21.727922061Subproblem 2
x + -9 = -12.727922061 Simplifying x + -9 = -12.727922061 Reorder the terms: -9 + x = -12.727922061 Solving -9 + x = -12.727922061 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + x = -12.727922061 + 9 Combine like terms: -9 + 9 = 0 0 + x = -12.727922061 + 9 x = -12.727922061 + 9 Combine like terms: -12.727922061 + 9 = -3.727922061 x = -3.727922061 Simplifying x = -3.727922061Solution
The solution to the problem is based on the solutions from the subproblems. x = {21.727922061, -3.727922061}
| y=-0.2x+4 | | 6(-3a+6)-5(6a-4)=-40 | | x+12=51 | | 21x+12=7x+12 | | x(x)=435 | | m=4(10)+2(5) | | x(2x-2)=35 | | 2n+10=-3n-5 | | 8x-2(10x-2)=20 | | 75+40x=y | | 23.75=18.75+2B | | X+3=-25 | | 5x+10=10x+10 | | -9n-8=10n-7 | | 2y-17y=72 | | 128=6(7+5x)-4 | | 8+4n=16 | | 3x-5=4+x-4x+2-3x | | S(x)=9x+5 | | 0=t^2+17t-30 | | 2.4(2x+3)=.1(2x+3) | | .03(6c-72)=-.9(c-6) | | -2(8x-5)=122 | | 2x+17x=42 | | 10x-1(5x-1)=60 | | 5x-19=2x+5+119 | | T-(-16)=4 | | -a+5(1-6a)=222 | | X-13=15x+12 | | X=15+-0.6y | | 24x+10+16x+90=180 | | -27=-6+3y |