If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -1x2 + 9x + 7 = 0 Reorder the terms: 7 + 9x + -1x2 = 0 Solving 7 + 9x + -1x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -7 + -9x + x2 = 0 Move the constant term to the right: Add '7' to each side of the equation. -7 + -9x + 7 + x2 = 0 + 7 Reorder the terms: -7 + 7 + -9x + x2 = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -9x + x2 = 0 + 7 -9x + x2 = 0 + 7 Combine like terms: 0 + 7 = 7 -9x + x2 = 7 The x term is -9x. Take half its coefficient (-4.5). Square it (20.25) and add it to both sides. Add '20.25' to each side of the equation. -9x + 20.25 + x2 = 7 + 20.25 Reorder the terms: 20.25 + -9x + x2 = 7 + 20.25 Combine like terms: 7 + 20.25 = 27.25 20.25 + -9x + x2 = 27.25 Factor a perfect square on the left side: (x + -4.5)(x + -4.5) = 27.25 Calculate the square root of the right side: 5.220153254 Break this problem into two subproblems by setting (x + -4.5) equal to 5.220153254 and -5.220153254.Subproblem 1
x + -4.5 = 5.220153254 Simplifying x + -4.5 = 5.220153254 Reorder the terms: -4.5 + x = 5.220153254 Solving -4.5 + x = 5.220153254 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + x = 5.220153254 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + x = 5.220153254 + 4.5 x = 5.220153254 + 4.5 Combine like terms: 5.220153254 + 4.5 = 9.720153254 x = 9.720153254 Simplifying x = 9.720153254Subproblem 2
x + -4.5 = -5.220153254 Simplifying x + -4.5 = -5.220153254 Reorder the terms: -4.5 + x = -5.220153254 Solving -4.5 + x = -5.220153254 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + x = -5.220153254 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + x = -5.220153254 + 4.5 x = -5.220153254 + 4.5 Combine like terms: -5.220153254 + 4.5 = -0.720153254 x = -0.720153254 Simplifying x = -0.720153254Solution
The solution to the problem is based on the solutions from the subproblems. x = {9.720153254, -0.720153254}
| s^2+3s-40=0 | | 8x^2-11x=-3 | | 5u-40= | | 6x+39=16-41 | | 9=11x | | 9x+8=4x+33 | | 8x-11=6x+1 | | x-6-x-6= | | 10x+5y=-25 | | (2x+6)-(-4x+8)= | | 56-6x=3x+18 | | x^2=120x-10y | | 11-7x=92-28x | | 5y=10x+-25 | | 4(x-9)=-3x-43 | | -4x-5=4x-13 | | x^2=12x-10y | | x+8=3x+2 | | 2 c = 16 | | -(x+1)=-4x+20 | | Y=x^2-2x-4 | | -2(x-8)=x+37 | | 128-6x=5x+7 | | 3(x+9)=4x+27 | | -5(x+6)=x-24 | | -13-4x=11-8x | | 25t+25t= | | -4(x+8)=-3x-31 | | -2x+3=2x+15 | | 2x+5=61-6x | | 2x-3=5x | | 5(2x+8)=6(2x+4) |