If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + x + -18 = 0 Reorder the terms: -18 + x + x2 = 0 Solving -18 + x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '18' to each side of the equation. -18 + x + 18 + x2 = 0 + 18 Reorder the terms: -18 + 18 + x + x2 = 0 + 18 Combine like terms: -18 + 18 = 0 0 + x + x2 = 0 + 18 x + x2 = 0 + 18 Combine like terms: 0 + 18 = 18 x + x2 = 18 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. x + 0.25 + x2 = 18 + 0.25 Reorder the terms: 0.25 + x + x2 = 18 + 0.25 Combine like terms: 18 + 0.25 = 18.25 0.25 + x + x2 = 18.25 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 18.25 Calculate the square root of the right side: 4.272001873 Break this problem into two subproblems by setting (x + 0.5) equal to 4.272001873 and -4.272001873.Subproblem 1
x + 0.5 = 4.272001873 Simplifying x + 0.5 = 4.272001873 Reorder the terms: 0.5 + x = 4.272001873 Solving 0.5 + x = 4.272001873 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 = 4.272001873 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 4.272001873 + -0.5 x = 4.272001873 + -0.5 Combine like terms: 4.272001873 + -0.5 = 3.772001873 x = 3.772001873 Simplifying x = 3.772001873Subproblem 2
x + 0.5 = -4.272001873 Simplifying x + 0.5 = -4.272001873 Reorder the terms: 0.5 + x = -4.272001873 Solving 0.5 + x = -4.272001873 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 = -4.272001873 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -4.272001873 + -0.5 x = -4.272001873 + -0.5 Combine like terms: -4.272001873 + -0.5 = -4.772001873 x = -4.772001873 Simplifying x = -4.772001873Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.772001873, -4.772001873}
| 2x+5=3x+19 | | 8(Z-12)=12 | | 5y-4=12-y | | 3T-9=6 | | 8*x+1=17 | | 2(D-9)=10 | | x^2+8x+160=0 | | 11L-53=24 | | 2y+3y+5=20 | | 8y-4x=-12 | | 5f+17=147 | | 8-4y=-12 | | 5(I+3)=35 | | 3x^2=-3x | | 4(9-3x)+2x=16 | | x^2-3x-50=0 | | 4x+2x=16 | | x^4+x^2*127000-205700000000=0 | | 100x-7=53x-17 | | 100x-7=53x-7 | | 2ln(x-2)=ln(3x) | | a^2x+2=2ax+x+a | | x=2x+2 | | x^2-3x-270=0 | | x^8-19x^4+48=0 | | 20x+15y=80000 | | 10+2d=123 | | 25+3x=17.5 | | p*0.40=680 | | s*1.50=2100 | | 142-3x=5x+12 | | a^3-4a=105 |