If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 18x = -31 Reorder the terms: 18x + x2 = -31 Solving 18x + x2 = -31 Solving for variable 'x'. Reorder the terms: 31 + 18x + x2 = -31 + 31 Combine like terms: -31 + 31 = 0 31 + 18x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-31' to each side of the equation. 31 + 18x + -31 + x2 = 0 + -31 Reorder the terms: 31 + -31 + 18x + x2 = 0 + -31 Combine like terms: 31 + -31 = 0 0 + 18x + x2 = 0 + -31 18x + x2 = 0 + -31 Combine like terms: 0 + -31 = -31 18x + x2 = -31 The x term is 18x. Take half its coefficient (9). Square it (81) and add it to both sides. Add '81' to each side of the equation. 18x + 81 + x2 = -31 + 81 Reorder the terms: 81 + 18x + x2 = -31 + 81 Combine like terms: -31 + 81 = 50 81 + 18x + x2 = 50 Factor a perfect square on the left side: (x + 9)(x + 9) = 50 Calculate the square root of the right side: 7.071067812 Break this problem into two subproblems by setting (x + 9) equal to 7.071067812 and -7.071067812.Subproblem 1
x + 9 = 7.071067812 Simplifying x + 9 = 7.071067812 Reorder the terms: 9 + x = 7.071067812 Solving 9 + x = 7.071067812 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + x = 7.071067812 + -9 Combine like terms: 9 + -9 = 0 0 + x = 7.071067812 + -9 x = 7.071067812 + -9 Combine like terms: 7.071067812 + -9 = -1.928932188 x = -1.928932188 Simplifying x = -1.928932188Subproblem 2
x + 9 = -7.071067812 Simplifying x + 9 = -7.071067812 Reorder the terms: 9 + x = -7.071067812 Solving 9 + x = -7.071067812 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + x = -7.071067812 + -9 Combine like terms: 9 + -9 = 0 0 + x = -7.071067812 + -9 x = -7.071067812 + -9 Combine like terms: -7.071067812 + -9 = -16.071067812 x = -16.071067812 Simplifying x = -16.071067812Solution
The solution to the problem is based on the solutions from the subproblems. x = {-1.928932188, -16.071067812}
| X/6+9=11 | | X+4.9=-7.3 | | x^2+4x+4=-1 | | X+(x+2)+(x+4)=129 | | a=3ba-3b | | 2/7-5/7=-3/7 | | -16t^2+45t+200=0 | | 3n-14=-(6-3n) | | 3(2+1)= | | 7y-5y-12=28.30 | | 3/4-x+5.25=-7 | | -16t^2+75t-43=0 | | (m^1/2n^5/2)^2/3 | | 3/4-x51/4=-7 | | 13=m-(-17) | | -16t^2+45t+400=0 | | 1/3x+1/3(2x-15)=3(1/2) | | 3/4-x+51/4=-7 | | 1/9x+1/2x+2/9=37/18 | | 7x-4x+x-8+2x= | | 14d+4=7d+60 | | 5(x-9)=19.5 | | 10q^3/60q^2 | | 4n-6=-3n+6n | | 9(a+7)=119.7 | | 12.6x-3.7x=178 | | 70=8c-2 | | 8x+41=9x-6 | | 7e-4=13.5 | | (x/3)-5=(5/6) | | -5x-17=-3(x+9) | | 9p=26.1 |