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 + -7 = 0 Reorder the terms: -7 + 2x + 7x2 = 0 Solving -7 + 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'. -1 + 0.2857142857x + x2 = 0 Move the constant term to the right: Add '1' to each side of the equation. -1 + 0.2857142857x + 1 + x2 = 0 + 1 Reorder the terms: -1 + 1 + 0.2857142857x + x2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 0.2857142857x + x2 = 0 + 1 0.2857142857x + x2 = 0 + 1 Combine like terms: 0 + 1 = 1 0.2857142857x + x2 = 1 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 = 1 + 0.02040816328 Reorder the terms: 0.02040816328 + 0.2857142857x + x2 = 1 + 0.02040816328 Combine like terms: 1 + 0.02040816328 = 1.02040816328 0.02040816328 + 0.2857142857x + x2 = 1.02040816328 Factor a perfect square on the left side: (x + 0.1428571429)(x + 0.1428571429) = 1.02040816328 Calculate the square root of the right side: 1.010152545 Break this problem into two subproblems by setting (x + 0.1428571429) equal to 1.010152545 and -1.010152545.Subproblem 1
x + 0.1428571429 = 1.010152545 Simplifying x + 0.1428571429 = 1.010152545 Reorder the terms: 0.1428571429 + x = 1.010152545 Solving 0.1428571429 + x = 1.010152545 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 = 1.010152545 + -0.1428571429 Combine like terms: 0.1428571429 + -0.1428571429 = 0.0000000000 0.0000000000 + x = 1.010152545 + -0.1428571429 x = 1.010152545 + -0.1428571429 Combine like terms: 1.010152545 + -0.1428571429 = 0.8672954021 x = 0.8672954021 Simplifying x = 0.8672954021Subproblem 2
x + 0.1428571429 = -1.010152545 Simplifying x + 0.1428571429 = -1.010152545 Reorder the terms: 0.1428571429 + x = -1.010152545 Solving 0.1428571429 + x = -1.010152545 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 = -1.010152545 + -0.1428571429 Combine like terms: 0.1428571429 + -0.1428571429 = 0.0000000000 0.0000000000 + x = -1.010152545 + -0.1428571429 x = -1.010152545 + -0.1428571429 Combine like terms: -1.010152545 + -0.1428571429 = -1.1530096879 x = -1.1530096879 Simplifying x = -1.1530096879Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.8672954021, -1.1530096879}
| 3x+(2x-5)=90 | | 5/7x=-6/7 | | 4x+8=3x+22 | | 2a+5=3 | | 45=12+3n | | 5x-17=x+11 | | (X+5)+(3x-1)=90 | | x+x=180-96-96 | | 3x/5=5 | | 2*a+5=3 | | y^2+8y+1=4y-2 | | 7(x^2+2x)=2(x^2+24) | | X^2=-i | | X^2+i=0 | | -2x-13=-27 | | 7x^4+28x= | | x^2+15x+4500=0 | | 11-4x-9x-5+12x= | | 9w=18 | | (X-9)*4=100 | | N=150 | | X-9*4=100 | | 3p-18=-16+2p | | 6x^2+2x-20= | | 6r-7=-19+2r | | 2n=120 | | (13*(z^5))-80= | | y=0.2*x | | x=0.2*y | | 7a+2b=13 | | 4k+7-2k+9= | | 4a-3b=24 |