If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying (7x2) + 91x + 66 = 0 Reorder the terms: 66 + 91x + (7x2) = 0 Solving 66 + 91x + (7x2) = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. 9.428571429 + 13x + x2 = 0 Move the constant term to the right: Add '-9.428571429' to each side of the equation. 9.428571429 + 13x + -9.428571429 + x2 = 0 + -9.428571429 Reorder the terms: 9.428571429 + -9.428571429 + 13x + x2 = 0 + -9.428571429 Combine like terms: 9.428571429 + -9.428571429 = 0.000000000 0.000000000 + 13x + x2 = 0 + -9.428571429 13x + x2 = 0 + -9.428571429 Combine like terms: 0 + -9.428571429 = -9.428571429 13x + x2 = -9.428571429 The x term is 13x. Take half its coefficient (6.5). Square it (42.25) and add it to both sides. Add '42.25' to each side of the equation. 13x + 42.25 + x2 = -9.428571429 + 42.25 Reorder the terms: 42.25 + 13x + x2 = -9.428571429 + 42.25 Combine like terms: -9.428571429 + 42.25 = 32.821428571 42.25 + 13x + x2 = 32.821428571 Factor a perfect square on the left side: ((x) + 6.5)((x) + 6.5) = 32.821428571 Calculate the square root of the right side: 5.728998915 Break this problem into two subproblems by setting ((x) + 6.5) equal to 5.728998915 and -5.728998915.Subproblem 1
(x) + 6.5 = 5.728998915 Simplifying (x) + 6.5 = 5.728998915 x + 6.5 = 5.728998915 Reorder the terms: 6.5 + x = 5.728998915 Solving 6.5 + x = 5.728998915 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6.5' to each side of the equation. 6.5 + -6.5 + x = 5.728998915 + -6.5 Combine like terms: 6.5 + -6.5 = 0.0 0.0 + x = 5.728998915 + -6.5 x = 5.728998915 + -6.5 Combine like terms: 5.728998915 + -6.5 = -0.771001085 x = -0.771001085 Simplifying x = -0.771001085Subproblem 2
(x) + 6.5 = -5.728998915 Simplifying (x) + 6.5 = -5.728998915 x + 6.5 = -5.728998915 Reorder the terms: 6.5 + x = -5.728998915 Solving 6.5 + x = -5.728998915 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6.5' to each side of the equation. 6.5 + -6.5 + x = -5.728998915 + -6.5 Combine like terms: 6.5 + -6.5 = 0.0 0.0 + x = -5.728998915 + -6.5 x = -5.728998915 + -6.5 Combine like terms: -5.728998915 + -6.5 = -12.228998915 x = -12.228998915 Simplifying x = -12.228998915Solution
The solution to the problem is based on the solutions from the subproblems. x = {-0.771001085, -12.228998915}
| 12x-4=3x+11 | | -2=4+s | | -8+4z=-16 | | x^2+12x-9=0 | | 6v^2+35v-6= | | x+11x+10x= | | 8=4w+12 | | 3t+4t=49 | | m^2+2m-48+6=0 | | -6x+2y=12 | | 6x+4y=10 | | 21x^2+27x-30=0 | | (4h^3k^2)(21hk^5)=0 | | .5(b-2)=5 | | -9.3x=83.7 | | x=595200+x(.38) | | 5n=4n+3n | | -1=x-3 | | 6z=-18 | | 3m-5=1 | | C+3c=12 | | -89905.98a^2+3239.7a-2.25=0 | | -3(b-4)=-2b | | 9z+1=82 | | 27-3x=30 | | -100a^2+35a-2.25=0 | | x=x(.38)-595200 | | 4x-44=8 | | 3(4.5+-1.5t)+2t=12 | | -5(3b+2)+(16b-7)=0 | | a^2+2ab+b^2= | | 2k+7=2k+14 |