If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -7x2 + -3x + 1 = 0 Reorder the terms: 1 + -3x + -7x2 = 0 Solving 1 + -3x + -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'. -0.1428571429 + 0.4285714286x + x2 = 0 Move the constant term to the right: Add '0.1428571429' to each side of the equation. -0.1428571429 + 0.4285714286x + 0.1428571429 + x2 = 0 + 0.1428571429 Reorder the terms: -0.1428571429 + 0.1428571429 + 0.4285714286x + x2 = 0 + 0.1428571429 Combine like terms: -0.1428571429 + 0.1428571429 = 0.0000000000 0.0000000000 + 0.4285714286x + x2 = 0 + 0.1428571429 0.4285714286x + x2 = 0 + 0.1428571429 Combine like terms: 0 + 0.1428571429 = 0.1428571429 0.4285714286x + x2 = 0.1428571429 The x term is 0.4285714286x. Take half its coefficient (0.2142857143). Square it (0.04591836735) and add it to both sides. Add '0.04591836735' to each side of the equation. 0.4285714286x + 0.04591836735 + x2 = 0.1428571429 + 0.04591836735 Reorder the terms: 0.04591836735 + 0.4285714286x + x2 = 0.1428571429 + 0.04591836735 Combine like terms: 0.1428571429 + 0.04591836735 = 0.18877551025 0.04591836735 + 0.4285714286x + x2 = 0.18877551025 Factor a perfect square on the left side: (x + 0.2142857143)(x + 0.2142857143) = 0.18877551025 Calculate the square root of the right side: 0.434483038 Break this problem into two subproblems by setting (x + 0.2142857143) equal to 0.434483038 and -0.434483038.Subproblem 1
x + 0.2142857143 = 0.434483038 Simplifying x + 0.2142857143 = 0.434483038 Reorder the terms: 0.2142857143 + x = 0.434483038 Solving 0.2142857143 + x = 0.434483038 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2142857143' to each side of the equation. 0.2142857143 + -0.2142857143 + x = 0.434483038 + -0.2142857143 Combine like terms: 0.2142857143 + -0.2142857143 = 0.0000000000 0.0000000000 + x = 0.434483038 + -0.2142857143 x = 0.434483038 + -0.2142857143 Combine like terms: 0.434483038 + -0.2142857143 = 0.2201973237 x = 0.2201973237 Simplifying x = 0.2201973237Subproblem 2
x + 0.2142857143 = -0.434483038 Simplifying x + 0.2142857143 = -0.434483038 Reorder the terms: 0.2142857143 + x = -0.434483038 Solving 0.2142857143 + x = -0.434483038 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2142857143' to each side of the equation. 0.2142857143 + -0.2142857143 + x = -0.434483038 + -0.2142857143 Combine like terms: 0.2142857143 + -0.2142857143 = 0.0000000000 0.0000000000 + x = -0.434483038 + -0.2142857143 x = -0.434483038 + -0.2142857143 Combine like terms: -0.434483038 + -0.2142857143 = -0.6487687523 x = -0.6487687523 Simplifying x = -0.6487687523Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.2201973237, -0.6487687523}
| 5k+4=10k-6 | | 8x-72=180 | | 9p+7=16+8p | | (3,7),(5,7).(5,-3)= | | 16/9=8v | | 2x=11+45 | | 3x+19=-2x-30 | | -0.8q=3.36 | | -2-2p=-20 | | 3c-5d=-8 | | 27=3x-6x+3 | | 6v/5=14 | | 6t-9=-69 | | 10+1a-4b= | | (-1,3),(-1,2),(9,2)= | | -3b+2=14 | | m=2n+6 | | 2p+3=2(p-3) | | 1/5x8= | | 10x3/5= | | 2+2X+5X=72 | | 4x=2x+6+3x | | 2y/9−5/9=4/9 | | -(8Y+4)-(-7-8)=-4 | | 5p-8p=0 | | 3(2x-6)=2(x+6) | | 4(-2x+5)=-12 | | 0.45(12)+0.06X=0.18(6+X) | | 4r+8=-28 | | 8/5.5=94/x | | f(80)=x(40-x) | | x^2-5=-31 |