If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 7x2 + 2x + -3 = 0 Reorder the terms: -3 + 2x + 7x2 = 0 Solving -3 + 2x + 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'. -0.4285714286 + 0.2857142857x + x2 = 0 Move the constant term to the right: Add '0.4285714286' to each side of the equation. -0.4285714286 + 0.2857142857x + 0.4285714286 + x2 = 0 + 0.4285714286 Reorder the terms: -0.4285714286 + 0.4285714286 + 0.2857142857x + x2 = 0 + 0.4285714286 Combine like terms: -0.4285714286 + 0.4285714286 = 0.0000000000 0.0000000000 + 0.2857142857x + x2 = 0 + 0.4285714286 0.2857142857x + x2 = 0 + 0.4285714286 Combine like terms: 0 + 0.4285714286 = 0.4285714286 0.2857142857x + x2 = 0.4285714286 The x term is 0.2857142857x. Take half its coefficient (0.1428571429). Square it (0.02040816328) and add it to both sides. Add '0.02040816328' to each side of the equation. 0.2857142857x + 0.02040816328 + x2 = 0.4285714286 + 0.02040816328 Reorder the terms: 0.02040816328 + 0.2857142857x + x2 = 0.4285714286 + 0.02040816328 Combine like terms: 0.4285714286 + 0.02040816328 = 0.44897959188 0.02040816328 + 0.2857142857x + x2 = 0.44897959188 Factor a perfect square on the left side: (x + 0.1428571429)(x + 0.1428571429) = 0.44897959188 Calculate the square root of the right side: 0.670059394 Break this problem into two subproblems by setting (x + 0.1428571429) equal to 0.670059394 and -0.670059394.Subproblem 1
x + 0.1428571429 = 0.670059394 Simplifying x + 0.1428571429 = 0.670059394 Reorder the terms: 0.1428571429 + x = 0.670059394 Solving 0.1428571429 + x = 0.670059394 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1428571429' to each side of the equation. 0.1428571429 + -0.1428571429 + x = 0.670059394 + -0.1428571429 Combine like terms: 0.1428571429 + -0.1428571429 = 0.0000000000 0.0000000000 + x = 0.670059394 + -0.1428571429 x = 0.670059394 + -0.1428571429 Combine like terms: 0.670059394 + -0.1428571429 = 0.5272022511 x = 0.5272022511 Simplifying x = 0.5272022511Subproblem 2
x + 0.1428571429 = -0.670059394 Simplifying x + 0.1428571429 = -0.670059394 Reorder the terms: 0.1428571429 + x = -0.670059394 Solving 0.1428571429 + x = -0.670059394 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1428571429' to each side of the equation. 0.1428571429 + -0.1428571429 + x = -0.670059394 + -0.1428571429 Combine like terms: 0.1428571429 + -0.1428571429 = 0.0000000000 0.0000000000 + x = -0.670059394 + -0.1428571429 x = -0.670059394 + -0.1428571429 Combine like terms: -0.670059394 + -0.1428571429 = -0.8129165369 x = -0.8129165369 Simplifying x = -0.8129165369Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.5272022511, -0.8129165369}
| 3(x-4)=21 | | 8n+2-n=16 | | 217-6x=30x+21 | | -(7-4x)=18 | | 14-9x=166-37x | | -2(56-5)= | | 2-(x+4)=-2(x+1)-3 | | 5y-6x=0 | | x-15+x(x-15)=x | | 78-5x=10+18 | | 78-5x=10x-18 | | 4x+27=11x-50 | | 4x-27=11x-50 | | 4x-16=-8 | | -7x=-2x-65 | | 5(6z-1)-3(z+9)=24(z+1) | | 7y^2-y+9=0 | | x+7=10-2x | | 3x+16=-15 | | -6z+15-9z^2=0 | | 2(5x-6)=4(3+8) | | 15n^2-n-2=0 | | 9a+7=4 | | 5x-7=21(1+x) | | 4x^2+20x-12=0 | | 12+3(x+4)=12 | | 2x+20=9x-36 | | 4(2x+3)=26+8 | | 16u+36-u^2=0 | | -6x-10x=80 | | -5+2x=12x+5 | | z^2-14z-72=0 |