If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 7x2 = 16 + x Solving 7x2 = 16 + x Solving for variable 'x'. Reorder the terms: -16 + -1x + 7x2 = 16 + x + -16 + -1x Reorder the terms: -16 + -1x + 7x2 = 16 + -16 + x + -1x Combine like terms: 16 + -16 = 0 -16 + -1x + 7x2 = 0 + x + -1x -16 + -1x + 7x2 = x + -1x Combine like terms: x + -1x = 0 -16 + -1x + 7x2 = 0 Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. -2.285714286 + -0.1428571429x + x2 = 0 Move the constant term to the right: Add '2.285714286' to each side of the equation. -2.285714286 + -0.1428571429x + 2.285714286 + x2 = 0 + 2.285714286 Reorder the terms: -2.285714286 + 2.285714286 + -0.1428571429x + x2 = 0 + 2.285714286 Combine like terms: -2.285714286 + 2.285714286 = 0.000000000 0.000000000 + -0.1428571429x + x2 = 0 + 2.285714286 -0.1428571429x + x2 = 0 + 2.285714286 Combine like terms: 0 + 2.285714286 = 2.285714286 -0.1428571429x + x2 = 2.285714286 The x term is -0.1428571429x. Take half its coefficient (-0.07142857145). Square it (0.005102040819) and add it to both sides. Add '0.005102040819' to each side of the equation. -0.1428571429x + 0.005102040819 + x2 = 2.285714286 + 0.005102040819 Reorder the terms: 0.005102040819 + -0.1428571429x + x2 = 2.285714286 + 0.005102040819 Combine like terms: 2.285714286 + 0.005102040819 = 2.290816326819 0.005102040819 + -0.1428571429x + x2 = 2.290816326819 Factor a perfect square on the left side: (x + -0.07142857145)(x + -0.07142857145) = 2.290816326819 Calculate the square root of the right side: 1.513544293 Break this problem into two subproblems by setting (x + -0.07142857145) equal to 1.513544293 and -1.513544293.Subproblem 1
x + -0.07142857145 = 1.513544293 Simplifying x + -0.07142857145 = 1.513544293 Reorder the terms: -0.07142857145 + x = 1.513544293 Solving -0.07142857145 + x = 1.513544293 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.07142857145' to each side of the equation. -0.07142857145 + 0.07142857145 + x = 1.513544293 + 0.07142857145 Combine like terms: -0.07142857145 + 0.07142857145 = 0.00000000000 0.00000000000 + x = 1.513544293 + 0.07142857145 x = 1.513544293 + 0.07142857145 Combine like terms: 1.513544293 + 0.07142857145 = 1.58497286445 x = 1.58497286445 Simplifying x = 1.58497286445Subproblem 2
x + -0.07142857145 = -1.513544293 Simplifying x + -0.07142857145 = -1.513544293 Reorder the terms: -0.07142857145 + x = -1.513544293 Solving -0.07142857145 + x = -1.513544293 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.07142857145' to each side of the equation. -0.07142857145 + 0.07142857145 + x = -1.513544293 + 0.07142857145 Combine like terms: -0.07142857145 + 0.07142857145 = 0.00000000000 0.00000000000 + x = -1.513544293 + 0.07142857145 x = -1.513544293 + 0.07142857145 Combine like terms: -1.513544293 + 0.07142857145 = -1.44211572155 x = -1.44211572155 Simplifying x = -1.44211572155Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.58497286445, -1.44211572155}
| 4-3x=31 | | x-3=24 | | 7x-(3x-6)=38 | | 2x+5-3x=19x+2(25-10x) | | 5x-2y=22fory | | -2x^2+13x-3=0 | | 8x-3=12x-19 | | 12x-18=8x-6 | | ln(x)=1/7 | | 4z-0.7=5z | | v+2=-14-n | | 7-(5+a)/4 | | 11+(3x-7)=(6x+5)-3x | | m+18= | | 2x+5(x-4)=6+3(2x+3) | | 3/8x14-u=3u+6 | | y/3+y/2-3 | | 6p+8=13p-6p-3 | | 9x+48=6x+50 | | 11+9=4x+30 | | -15=9r+1-6c | | x/2=13-x/3 | | -9+v/8=3 | | 5x^1/2+7=22 | | -4.7=8.4 | | 7x-19=5x+7 | | 9.2=5.7+h/6+4 | | 17+x-4=4x | | 28+19v=-8+15v | | 4=9/x | | 7y-(9-4y)=3(y-11) | | -5/3p+1/3+1=23/21 |