If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 0 = 15x2 + 15x + -7 Reorder the terms: 0 = -7 + 15x + 15x2 Solving 0 = -7 + 15x + 15x2 Solving for variable 'x'. Combine like terms: 0 + 7 = 7 7 + -15x + -15x2 = -7 + 15x + 15x2 + 7 + -15x + -15x2 Reorder the terms: 7 + -15x + -15x2 = -7 + 7 + 15x + -15x + 15x2 + -15x2 Combine like terms: -7 + 7 = 0 7 + -15x + -15x2 = 0 + 15x + -15x + 15x2 + -15x2 7 + -15x + -15x2 = 15x + -15x + 15x2 + -15x2 Combine like terms: 15x + -15x = 0 7 + -15x + -15x2 = 0 + 15x2 + -15x2 7 + -15x + -15x2 = 15x2 + -15x2 Combine like terms: 15x2 + -15x2 = 0 7 + -15x + -15x2 = 0 Begin completing the square. Divide all terms by -15 the coefficient of the squared term: Divide each side by '-15'. -0.4666666667 + x + x2 = 0 Move the constant term to the right: Add '0.4666666667' to each side of the equation. -0.4666666667 + x + 0.4666666667 + x2 = 0 + 0.4666666667 Reorder the terms: -0.4666666667 + 0.4666666667 + x + x2 = 0 + 0.4666666667 Combine like terms: -0.4666666667 + 0.4666666667 = 0.0000000000 0.0000000000 + x + x2 = 0 + 0.4666666667 x + x2 = 0 + 0.4666666667 Combine like terms: 0 + 0.4666666667 = 0.4666666667 x + x2 = 0.4666666667 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. + 0.25 + x2 = 0.4666666667 + 0.25 Combine like terms: + 0.25 = 1.25 1.25 + x2 = 0.4666666667 + 0.25 Combine like terms: 0.4666666667 + 0.25 = 0.7166666667 1.25 + x2 = 0.7166666667 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 0.7166666667 Calculate the square root of the right side: 0.846561673 Break this problem into two subproblems by setting (x + 0.5) equal to 0.846561673 and -0.846561673.Subproblem 1
x + 0.5 = 0.846561673 Simplifying x + 0.5 = 0.846561673 Reorder the terms: 0.5 + x = 0.846561673 Solving 0.5 + x = 0.846561673 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 0.846561673 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 0.846561673 + -0.5 x = 0.846561673 + -0.5 Combine like terms: 0.846561673 + -0.5 = 0.346561673 x = 0.346561673 Simplifying x = 0.346561673Subproblem 2
x + 0.5 = -0.846561673 Simplifying x + 0.5 = -0.846561673 Reorder the terms: 0.5 + x = -0.846561673 Solving 0.5 + x = -0.846561673 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -0.846561673 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -0.846561673 + -0.5 x = -0.846561673 + -0.5 Combine like terms: -0.846561673 + -0.5 = -1.346561673 x = -1.346561673 Simplifying x = -1.346561673Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.346561673, -1.346561673}
| 2h+7=3h+52 | | -2x-1=-23 | | Y=.66x-4 | | 13x-6+30=16x+6 | | Y=.66-4 | | 4-15=55+17 | | -1.92=-0.32s | | 7n-13=5n+7 | | 4+.333r=r-8 | | 7n^2+48n-64=0 | | 15+3x= | | g-(-1.5)=2.35 | | 4k=7k(4) | | 55x+55=500 | | 4+.333r=-8 | | Y=.75x-4 | | 21(2-x)+12v=44 | | 0=(8x^7)-(56x^6) | | 12p-4=6p+5 | | 3-(2x+5)=12 | | 8=x*x+4 | | 4k=7k+1 | | 8.5*x^2+29.2*x-162=0 | | 44237+7587+7532=7537-x-x^2-y | | -36=-6(2+2z) | | 12y-35+30y=42 | | 24-x=51 | | 5x+15=2x+9 | | 13-4n=10n-15 | | 5=x*x+4 | | 4d(3d-2)=8d-5 | | 3x=10x-3 |