If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2x2 + 7x + -140 = 0 Reorder the terms: -140 + 7x + 2x2 = 0 Solving -140 + 7x + 2x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -70 + 3.5x + x2 = 0 Move the constant term to the right: Add '70' to each side of the equation. -70 + 3.5x + 70 + x2 = 0 + 70 Reorder the terms: -70 + 70 + 3.5x + x2 = 0 + 70 Combine like terms: -70 + 70 = 0 0 + 3.5x + x2 = 0 + 70 3.5x + x2 = 0 + 70 Combine like terms: 0 + 70 = 70 3.5x + x2 = 70 The x term is 3.5x. Take half its coefficient (1.75). Square it (3.0625) and add it to both sides. Add '3.0625' to each side of the equation. 3.5x + 3.0625 + x2 = 70 + 3.0625 Reorder the terms: 3.0625 + 3.5x + x2 = 70 + 3.0625 Combine like terms: 70 + 3.0625 = 73.0625 3.0625 + 3.5x + x2 = 73.0625 Factor a perfect square on the left side: (x + 1.75)(x + 1.75) = 73.0625 Calculate the square root of the right side: 8.547660499 Break this problem into two subproblems by setting (x + 1.75) equal to 8.547660499 and -8.547660499.Subproblem 1
x + 1.75 = 8.547660499 Simplifying x + 1.75 = 8.547660499 Reorder the terms: 1.75 + x = 8.547660499 Solving 1.75 + x = 8.547660499 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.75' to each side of the equation. 1.75 + -1.75 + x = 8.547660499 + -1.75 Combine like terms: 1.75 + -1.75 = 0.00 0.00 + x = 8.547660499 + -1.75 x = 8.547660499 + -1.75 Combine like terms: 8.547660499 + -1.75 = 6.797660499 x = 6.797660499 Simplifying x = 6.797660499Subproblem 2
x + 1.75 = -8.547660499 Simplifying x + 1.75 = -8.547660499 Reorder the terms: 1.75 + x = -8.547660499 Solving 1.75 + x = -8.547660499 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.75' to each side of the equation. 1.75 + -1.75 + x = -8.547660499 + -1.75 Combine like terms: 1.75 + -1.75 = 0.00 0.00 + x = -8.547660499 + -1.75 x = -8.547660499 + -1.75 Combine like terms: -8.547660499 + -1.75 = -10.297660499 x = -10.297660499 Simplifying x = -10.297660499Solution
The solution to the problem is based on the solutions from the subproblems. x = {6.797660499, -10.297660499}
| 2x^2+4x-80=0 | | 2x^2+20x-200=0 | | 5x+7=-49-9x | | 2x^2+5x-50=0 | | 5s-2=3s+12 | | -16-3x=8-9x | | 10p+11=3p+88 | | 6g+9=4g+17 | | 2x^2+8x+160=0 | | 2x^2+15x-150=0 | | 3n+6=2x+8 | | X^2=75 | | 2x^2+10x+100=0 | | 0.3x=-10 | | 2x^2+10x+150=0 | | 4t+7=2t+21 | | 3(x+2)=2n+8 | | (c+5)(c-3)= | | 2x^2+15x+50=0 | | 0.33(3x+9)=7 | | 2x^2+15x+150=0 | | -x^2+y^2-6x-6y-4=0 | | x-3(x-2)+2(x-1)=4x+3 | | 9=x^2+8x | | 49-4x=14x+17 | | 4(x)-7=45 | | (y-4)-(y+7)=3y | | 8-9x=24-16x | | 0.5(x-4)=3 | | -6a+2+7a=8-28 | | 4[5y-2]=52 | | 10x-4=7x+14 |