If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 7x2 + 9x + -28 = 0 Reorder the terms: -28 + 9x + 7x2 = 0 Solving -28 + 9x + 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'. -4 + 1.285714286x + x2 = 0 Move the constant term to the right: Add '4' to each side of the equation. -4 + 1.285714286x + 4 + x2 = 0 + 4 Reorder the terms: -4 + 4 + 1.285714286x + x2 = 0 + 4 Combine like terms: -4 + 4 = 0 0 + 1.285714286x + x2 = 0 + 4 1.285714286x + x2 = 0 + 4 Combine like terms: 0 + 4 = 4 1.285714286x + x2 = 4 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 = 4 + 0.4132653063 Reorder the terms: 0.4132653063 + 1.285714286x + x2 = 4 + 0.4132653063 Combine like terms: 4 + 0.4132653063 = 4.4132653063 0.4132653063 + 1.285714286x + x2 = 4.4132653063 Factor a perfect square on the left side: (x + 0.642857143)(x + 0.642857143) = 4.4132653063 Calculate the square root of the right side: 2.10077731 Break this problem into two subproblems by setting (x + 0.642857143) equal to 2.10077731 and -2.10077731.Subproblem 1
x + 0.642857143 = 2.10077731 Simplifying x + 0.642857143 = 2.10077731 Reorder the terms: 0.642857143 + x = 2.10077731 Solving 0.642857143 + x = 2.10077731 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 = 2.10077731 + -0.642857143 Combine like terms: 0.642857143 + -0.642857143 = 0.000000000 0.000000000 + x = 2.10077731 + -0.642857143 x = 2.10077731 + -0.642857143 Combine like terms: 2.10077731 + -0.642857143 = 1.457920167 x = 1.457920167 Simplifying x = 1.457920167Subproblem 2
x + 0.642857143 = -2.10077731 Simplifying x + 0.642857143 = -2.10077731 Reorder the terms: 0.642857143 + x = -2.10077731 Solving 0.642857143 + x = -2.10077731 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 = -2.10077731 + -0.642857143 Combine like terms: 0.642857143 + -0.642857143 = 0.000000000 0.000000000 + x = -2.10077731 + -0.642857143 x = -2.10077731 + -0.642857143 Combine like terms: -2.10077731 + -0.642857143 = -2.743634453 x = -2.743634453 Simplifying x = -2.743634453Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.457920167, -2.743634453}
| 2m+3m-4m= | | 84u-3=-9u-16 | | x+8+6x-58=90 | | y^2-16y-64=0 | | 27=-3(21-y)+3(y-2) | | 23-5=7 | | 5(10n+9)+4= | | 4(r^3)-7r+3=0 | | 8(x-2)=6x-2 | | 5u+7=8 | | x-34=x-7 | | 9p-24pq= | | x*x+4x=100 | | 6x-6(6y-5x)-6y= | | 2(4+3a)+a= | | 8x-61=6x-13 | | 3(x+18)=-3(x-18) | | 4+3w=7w+2 | | |-13|-|13|=-13-13 | | 3x+5+7x-15=180 | | .53=x | | 2(2-7n)=5n+4(1+6n) | | 1/23=x | | -9z+8z=5Z+2+4Z | | 3(x+6)=35-2x | | 6y+8(4y+2)= | | 0.7(6X+2)=1.1-(X+6) | | x^2+y^2+2x+4y=0 | | 9x+1=11x-23 | | (2x+1)+x+(x-3)=26 | | 14x-13=8x+5 | | 14x-13=8+5 |