If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 7x2 = 8 + -9x Solving 7x2 = 8 + -9x Solving for variable 'x'. Reorder the terms: -8 + 9x + 7x2 = 8 + -9x + -8 + 9x Reorder the terms: -8 + 9x + 7x2 = 8 + -8 + -9x + 9x Combine like terms: 8 + -8 = 0 -8 + 9x + 7x2 = 0 + -9x + 9x -8 + 9x + 7x2 = -9x + 9x Combine like terms: -9x + 9x = 0 -8 + 9x + 7x2 = 0 Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. -1.142857143 + 1.285714286x + x2 = 0 Move the constant term to the right: Add '1.142857143' to each side of the equation. -1.142857143 + 1.285714286x + 1.142857143 + x2 = 0 + 1.142857143 Reorder the terms: -1.142857143 + 1.142857143 + 1.285714286x + x2 = 0 + 1.142857143 Combine like terms: -1.142857143 + 1.142857143 = 0.000000000 0.000000000 + 1.285714286x + x2 = 0 + 1.142857143 1.285714286x + x2 = 0 + 1.142857143 Combine like terms: 0 + 1.142857143 = 1.142857143 1.285714286x + x2 = 1.142857143 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 = 1.142857143 + 0.4132653063 Reorder the terms: 0.4132653063 + 1.285714286x + x2 = 1.142857143 + 0.4132653063 Combine like terms: 1.142857143 + 0.4132653063 = 1.5561224493 0.4132653063 + 1.285714286x + x2 = 1.5561224493 Factor a perfect square on the left side: (x + 0.642857143)(x + 0.642857143) = 1.5561224493 Calculate the square root of the right side: 1.247446371 Break this problem into two subproblems by setting (x + 0.642857143) equal to 1.247446371 and -1.247446371.Subproblem 1
x + 0.642857143 = 1.247446371 Simplifying x + 0.642857143 = 1.247446371 Reorder the terms: 0.642857143 + x = 1.247446371 Solving 0.642857143 + x = 1.247446371 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 = 1.247446371 + -0.642857143 Combine like terms: 0.642857143 + -0.642857143 = 0.000000000 0.000000000 + x = 1.247446371 + -0.642857143 x = 1.247446371 + -0.642857143 Combine like terms: 1.247446371 + -0.642857143 = 0.604589228 x = 0.604589228 Simplifying x = 0.604589228Subproblem 2
x + 0.642857143 = -1.247446371 Simplifying x + 0.642857143 = -1.247446371 Reorder the terms: 0.642857143 + x = -1.247446371 Solving 0.642857143 + x = -1.247446371 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 = -1.247446371 + -0.642857143 Combine like terms: 0.642857143 + -0.642857143 = 0.000000000 0.000000000 + x = -1.247446371 + -0.642857143 x = -1.247446371 + -0.642857143 Combine like terms: -1.247446371 + -0.642857143 = -1.890303514 x = -1.890303514 Simplifying x = -1.890303514Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.604589228, -1.890303514}
| 0.09x-0.3(x+4)=-0.15 | | 3x^2-8x+11=0 | | 2(6x-5)=3(4x-2)-8 | | 42-12x=-5x-49 | | 3x-3=25 | | 12w-10=12w-14 | | 2x+3=21 | | 20-20x=6x-46 | | 8x+4(-2x-5)=-15-5x | | 11(3x-4)=-3 | | 3a(7b-6c)= | | -3f=14-f | | 4x-7-2x=3(2-x)-1 | | 2(6x+11)=1 | | 5x-10=6x+7 | | -5x+12-2y=0 | | -4(-1)-2y=14 | | -2(x-4)= | | 4(6x+6x)=3 | | 4+2a-7=3(a+1)+a | | 0.3-0.3=0.3 | | 8(7x-5)=-9 | | 5(-6)+4y=-30 | | 2(6x-9)=16x-62 | | 57x+(-12)=360 | | 5x(8+9)=7 | | 5-(-8)+(-12)= | | -7(1)-8y=9 | | 6x-8=2x | | 11x-4=14x+3 | | 8x^2-39x-5=0 | | 2x^3-x^2-50x+25=0 |