If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 9x2 + x + -1 = x2 + -1x + 7 Reorder the terms: -1 + x + 9x2 = x2 + -1x + 7 Reorder the terms: -1 + x + 9x2 = 7 + -1x + x2 Solving -1 + x + 9x2 = 7 + -1x + x2 Solving for variable 'x'. Reorder the terms: -1 + -7 + x + x + 9x2 + -1x2 = 7 + -1x + x2 + -7 + x + -1x2 Combine like terms: -1 + -7 = -8 -8 + x + x + 9x2 + -1x2 = 7 + -1x + x2 + -7 + x + -1x2 Combine like terms: x + x = 2x -8 + 2x + 9x2 + -1x2 = 7 + -1x + x2 + -7 + x + -1x2 Combine like terms: 9x2 + -1x2 = 8x2 -8 + 2x + 8x2 = 7 + -1x + x2 + -7 + x + -1x2 Reorder the terms: -8 + 2x + 8x2 = 7 + -7 + -1x + x + x2 + -1x2 Combine like terms: 7 + -7 = 0 -8 + 2x + 8x2 = 0 + -1x + x + x2 + -1x2 -8 + 2x + 8x2 = -1x + x + x2 + -1x2 Combine like terms: -1x + x = 0 -8 + 2x + 8x2 = 0 + x2 + -1x2 -8 + 2x + 8x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -8 + 2x + 8x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-4 + x + 4x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-4 + x + 4x2)' equal to zero and attempt to solve: Simplifying -4 + x + 4x2 = 0 Solving -4 + x + 4x2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -1 + 0.25x + x2 = 0 Move the constant term to the right: Add '1' to each side of the equation. -1 + 0.25x + 1 + x2 = 0 + 1 Reorder the terms: -1 + 1 + 0.25x + x2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 0.25x + x2 = 0 + 1 0.25x + x2 = 0 + 1 Combine like terms: 0 + 1 = 1 0.25x + x2 = 1 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. 0.25x + 0.25 + x2 = 1 + 0.25 Reorder the terms: 0.25 + 0.25x + x2 = 1 + 0.25 Combine like terms: 1 + 0.25 = 1.25 0.25 + 0.25x + x2 = 1.25 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 1.25 Calculate the square root of the right side: 1.118033989 Break this problem into two subproblems by setting (x + 0.5) equal to 1.118033989 and -1.118033989.Subproblem 1
x + 0.5 = 1.118033989 Simplifying x + 0.5 = 1.118033989 Reorder the terms: 0.5 + x = 1.118033989 Solving 0.5 + x = 1.118033989 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 = 1.118033989 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 1.118033989 + -0.5 x = 1.118033989 + -0.5 Combine like terms: 1.118033989 + -0.5 = 0.618033989 x = 0.618033989 Simplifying x = 0.618033989Subproblem 2
x + 0.5 = -1.118033989 Simplifying x + 0.5 = -1.118033989 Reorder the terms: 0.5 + x = -1.118033989 Solving 0.5 + x = -1.118033989 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 = -1.118033989 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -1.118033989 + -0.5 x = -1.118033989 + -0.5 Combine like terms: -1.118033989 + -0.5 = -1.618033989 x = -1.618033989 Simplifying x = -1.618033989Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.618033989, -1.618033989}Solution
x = {0.618033989, -1.618033989}
| 0.42x=12 | | 2(x+9)=3x-2 | | 2x-(x+7)= | | q+-73=27 | | 11-7x=-10 | | -20x+119=-13x+63 | | 14x-45=5-65x | | 6x-31=4x+19 | | 3x-5=-8(6x+5) | | 6ln(2x+8)=22 | | 2-x-2(1-x)= | | -4u^2+20u-1=0 | | 2x-5=3(2y-1) | | -5(10x+4)x(3x+2)= | | 5(3x+11)=-15 | | 21y^2+41y+18= | | N+0.75n=-2.1875 | | 4u^2-20u+1=0 | | 21y+41y+18= | | 3n^2(n^2+3)=20-2n^2 | | -13=8b | | 2t^3+11t^2+15t=0 | | -6=-1+z/(-4) | | -x-6y=-16 | | 8X-(1-X)=3(1+3X)-4 | | 3(x-7)-6(4)=2(x-1) | | x^2y-36=0 | | 4(2x+1)=128 | | 12x=8-2+6 | | 40-4x=2(3x-10) | | 8x+560=10(40+x) | | -7x+2=-6 |