If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 7x2 + 7 = 8 + -9x Reorder the terms: 7 + 7x2 = 8 + -9x Solving 7 + 7x2 = 8 + -9x Solving for variable 'x'. Reorder the terms: 7 + -8 + 9x + 7x2 = 8 + -9x + -8 + 9x Combine like terms: 7 + -8 = -1 -1 + 9x + 7x2 = 8 + -9x + -8 + 9x Reorder the terms: -1 + 9x + 7x2 = 8 + -8 + -9x + 9x Combine like terms: 8 + -8 = 0 -1 + 9x + 7x2 = 0 + -9x + 9x -1 + 9x + 7x2 = -9x + 9x Combine like terms: -9x + 9x = 0 -1 + 9x + 7x2 = 0 Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. -0.1428571429 + 1.285714286x + x2 = 0 Move the constant term to the right: Add '0.1428571429' to each side of the equation. -0.1428571429 + 1.285714286x + 0.1428571429 + x2 = 0 + 0.1428571429 Reorder the terms: -0.1428571429 + 0.1428571429 + 1.285714286x + x2 = 0 + 0.1428571429 Combine like terms: -0.1428571429 + 0.1428571429 = 0.0000000000 0.0000000000 + 1.285714286x + x2 = 0 + 0.1428571429 1.285714286x + x2 = 0 + 0.1428571429 Combine like terms: 0 + 0.1428571429 = 0.1428571429 1.285714286x + x2 = 0.1428571429 The x term is 1.285714286x. Take half its coefficient (0.642857143). Square it (0.4132653063) and add it to both sides. Add '0.4132653063' to each side of the equation. 1.285714286x + 0.4132653063 + x2 = 0.1428571429 + 0.4132653063 Reorder the terms: 0.4132653063 + 1.285714286x + x2 = 0.1428571429 + 0.4132653063 Combine like terms: 0.1428571429 + 0.4132653063 = 0.5561224492 0.4132653063 + 1.285714286x + x2 = 0.5561224492 Factor a perfect square on the left side: (x + 0.642857143)(x + 0.642857143) = 0.5561224492 Calculate the square root of the right side: 0.745736179 Break this problem into two subproblems by setting (x + 0.642857143) equal to 0.745736179 and -0.745736179.Subproblem 1
x + 0.642857143 = 0.745736179 Simplifying x + 0.642857143 = 0.745736179 Reorder the terms: 0.642857143 + x = 0.745736179 Solving 0.642857143 + x = 0.745736179 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.642857143' to each side of the equation. 0.642857143 + -0.642857143 + x = 0.745736179 + -0.642857143 Combine like terms: 0.642857143 + -0.642857143 = 0.000000000 0.000000000 + x = 0.745736179 + -0.642857143 x = 0.745736179 + -0.642857143 Combine like terms: 0.745736179 + -0.642857143 = 0.102879036 x = 0.102879036 Simplifying x = 0.102879036Subproblem 2
x + 0.642857143 = -0.745736179 Simplifying x + 0.642857143 = -0.745736179 Reorder the terms: 0.642857143 + x = -0.745736179 Solving 0.642857143 + x = -0.745736179 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.642857143' to each side of the equation. 0.642857143 + -0.642857143 + x = -0.745736179 + -0.642857143 Combine like terms: 0.642857143 + -0.642857143 = 0.000000000 0.000000000 + x = -0.745736179 + -0.642857143 x = -0.745736179 + -0.642857143 Combine like terms: -0.745736179 + -0.642857143 = -1.388593322 x = -1.388593322 Simplifying x = -1.388593322Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.102879036, -1.388593322}
| d^2-30d=23 | | 4a-8=12-2a | | T=6n+7 | | 3x*62345=5x | | x+0.2x=750 | | 53.4+53.6=53(4+6) | | x^3-6x^2+5x-9=0 | | -9x^2=72 | | -6(w+1)=3w-4+3(w+2) | | x^2+7x+99=76 | | 0=5(x+1) | | -7x^2=21x | | 5x+5y=O | | 5(3x-5)=5(x+2) | | 3x+4x-6=2+8-x | | 6x^4+15x^3y^2+3x^2y^3= | | -log(x)=1.7 | | 1.12+1.25g=8.6# | | 2x-13=x+12 | | 10x-5=7x+22 | | A(n)=6+(n-1)(-1) | | 2x^3+x^2-13x+a=0 | | 25x-3=5x | | 35x+3=5x | | 35x-3=5x | | 120cos+100cos^2x-100sin=0 | | 7x+3=9-13 | | 8p=6/7 | | -5x+3(10x-1)=5x | | 4/5x-12=60 | | 5x-12=148 | | 2+2sinx=4cos^2x |