If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x = -2x2 + 12x + -7 Reorder the terms: x = -7 + 12x + -2x2 Solving x = -7 + 12x + -2x2 Solving for variable 'x'. Reorder the terms: 7 + x + -12x + 2x2 = -7 + 12x + -2x2 + 7 + -12x + 2x2 Combine like terms: x + -12x = -11x 7 + -11x + 2x2 = -7 + 12x + -2x2 + 7 + -12x + 2x2 Reorder the terms: 7 + -11x + 2x2 = -7 + 7 + 12x + -12x + -2x2 + 2x2 Combine like terms: -7 + 7 = 0 7 + -11x + 2x2 = 0 + 12x + -12x + -2x2 + 2x2 7 + -11x + 2x2 = 12x + -12x + -2x2 + 2x2 Combine like terms: 12x + -12x = 0 7 + -11x + 2x2 = 0 + -2x2 + 2x2 7 + -11x + 2x2 = -2x2 + 2x2 Combine like terms: -2x2 + 2x2 = 0 7 + -11x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 3.5 + -5.5x + x2 = 0 Move the constant term to the right: Add '-3.5' to each side of the equation. 3.5 + -5.5x + -3.5 + x2 = 0 + -3.5 Reorder the terms: 3.5 + -3.5 + -5.5x + x2 = 0 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + -5.5x + x2 = 0 + -3.5 -5.5x + x2 = 0 + -3.5 Combine like terms: 0 + -3.5 = -3.5 -5.5x + x2 = -3.5 The x term is -5.5x. Take half its coefficient (-2.75). Square it (7.5625) and add it to both sides. Add '7.5625' to each side of the equation. -5.5x + 7.5625 + x2 = -3.5 + 7.5625 Reorder the terms: 7.5625 + -5.5x + x2 = -3.5 + 7.5625 Combine like terms: -3.5 + 7.5625 = 4.0625 7.5625 + -5.5x + x2 = 4.0625 Factor a perfect square on the left side: (x + -2.75)(x + -2.75) = 4.0625 Calculate the square root of the right side: 2.015564437 Break this problem into two subproblems by setting (x + -2.75) equal to 2.015564437 and -2.015564437.Subproblem 1
x + -2.75 = 2.015564437 Simplifying x + -2.75 = 2.015564437 Reorder the terms: -2.75 + x = 2.015564437 Solving -2.75 + x = 2.015564437 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.75' to each side of the equation. -2.75 + 2.75 + x = 2.015564437 + 2.75 Combine like terms: -2.75 + 2.75 = 0.00 0.00 + x = 2.015564437 + 2.75 x = 2.015564437 + 2.75 Combine like terms: 2.015564437 + 2.75 = 4.765564437 x = 4.765564437 Simplifying x = 4.765564437Subproblem 2
x + -2.75 = -2.015564437 Simplifying x + -2.75 = -2.015564437 Reorder the terms: -2.75 + x = -2.015564437 Solving -2.75 + x = -2.015564437 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.75' to each side of the equation. -2.75 + 2.75 + x = -2.015564437 + 2.75 Combine like terms: -2.75 + 2.75 = 0.00 0.00 + x = -2.015564437 + 2.75 x = -2.015564437 + 2.75 Combine like terms: -2.015564437 + 2.75 = 0.734435563 x = 0.734435563 Simplifying x = 0.734435563Solution
The solution to the problem is based on the solutions from the subproblems. x = {4.765564437, 0.734435563}
| 4.7+2.7x=x+73.3 | | -2x^2+12x-7=x | | 2(m+-6)=4 | | (5x-3x)+(x+8)=(2x+1)+(x+x) | | 6p-5=2p-9 | | y=-2x^2+12x-7 | | n+6n+-44=3n | | 2x=842 | | X^3-x=6x^2-6 | | n+6n+144=3n | | 25-6x=14+5x | | R(x)=8x^2+12x-20 | | 7*n-3+n=41 | | m^2-m-6=0 | | 0=4(2y)+2y-24 | | 9x+12-8x=-6(x-2)+7x | | 6e=4e+36 | | X^3-x=6x^2 | | 2k+16=4k | | 1(4x-1)=12x+6 | | (x+5)(x-5)=75 | | -5v=-1.25 | | 3(3x)-11=7 | | x+23+2x=-6-2x-11 | | -5.5-8=x | | -8t^2+6t+27=0 | | 3(32)-26= | | 5p-9=6p | | 7x-6=3x-22 | | x+0.7=-0.3 | | 3(3c-1)-5=4c+7 | | x^2-12x+37=0 |