If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 0 = 2x2 + -7x + -40 Reorder the terms: 0 = -40 + -7x + 2x2 Solving 0 = -40 + -7x + 2x2 Solving for variable 'x'. Combine like terms: 0 + 40 = 40 40 + 7x + -2x2 = -40 + -7x + 2x2 + 40 + 7x + -2x2 Reorder the terms: 40 + 7x + -2x2 = -40 + 40 + -7x + 7x + 2x2 + -2x2 Combine like terms: -40 + 40 = 0 40 + 7x + -2x2 = 0 + -7x + 7x + 2x2 + -2x2 40 + 7x + -2x2 = -7x + 7x + 2x2 + -2x2 Combine like terms: -7x + 7x = 0 40 + 7x + -2x2 = 0 + 2x2 + -2x2 40 + 7x + -2x2 = 2x2 + -2x2 Combine like terms: 2x2 + -2x2 = 0 40 + 7x + -2x2 = 0 Begin completing the square. Divide all terms by -2 the coefficient of the squared term: Divide each side by '-2'. -20 + -3.5x + x2 = 0 Move the constant term to the right: Add '20' to each side of the equation. -20 + -3.5x + 20 + x2 = 0 + 20 Reorder the terms: -20 + 20 + -3.5x + x2 = 0 + 20 Combine like terms: -20 + 20 = 0 0 + -3.5x + x2 = 0 + 20 -3.5x + x2 = 0 + 20 Combine like terms: 0 + 20 = 20 -3.5x + x2 = 20 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 = 20 + 3.0625 Reorder the terms: 3.0625 + -3.5x + x2 = 20 + 3.0625 Combine like terms: 20 + 3.0625 = 23.0625 3.0625 + -3.5x + x2 = 23.0625 Factor a perfect square on the left side: (x + -1.75)(x + -1.75) = 23.0625 Calculate the square root of the right side: 4.802343178 Break this problem into two subproblems by setting (x + -1.75) equal to 4.802343178 and -4.802343178.Subproblem 1
x + -1.75 = 4.802343178 Simplifying x + -1.75 = 4.802343178 Reorder the terms: -1.75 + x = 4.802343178 Solving -1.75 + x = 4.802343178 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 = 4.802343178 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + x = 4.802343178 + 1.75 x = 4.802343178 + 1.75 Combine like terms: 4.802343178 + 1.75 = 6.552343178 x = 6.552343178 Simplifying x = 6.552343178Subproblem 2
x + -1.75 = -4.802343178 Simplifying x + -1.75 = -4.802343178 Reorder the terms: -1.75 + x = -4.802343178 Solving -1.75 + x = -4.802343178 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 = -4.802343178 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + x = -4.802343178 + 1.75 x = -4.802343178 + 1.75 Combine like terms: -4.802343178 + 1.75 = -3.052343178 x = -3.052343178 Simplifying x = -3.052343178Solution
The solution to the problem is based on the solutions from the subproblems. x = {6.552343178, -3.052343178}
| 4x^2-56x+172=0 | | -7p-18=-8p | | 12x^2+42=15x^2+15 | | xcubed+xsquared=100 | | 4/5=x/4 | | -3(-7x+1)-2x=-22 | | dx/d | | 17-j=9 | | y+100=10x | | 5m-3m=10 | | 4c^2-56x+172=0 | | y-f/d | | 3.5x=50-5x | | -5s=20-10s | | 3/x=2/3 | | 14u=15u-20 | | x^2+5x-9x-45= | | X^2=9+81 | | 1x^2=3 | | 12x-12x-1=-3 | | log(x+1)-2logx=1 | | b-8.4=-29 | | -8x-8+4(x-2)=-3x+2 | | 27/8*10/3 | | 27/8(10/3) | | 2*(x+5)=-1 | | 2(1-2x)=4x+5 | | -6g=66 | | x^2+6x+2x+12= | | x+15=123 | | 5-8i= | | b+7=3b+2 |