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 + -126 = 0 Reorder the terms: -126 + 18x + x2 = 0 Solving -126 + 18x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '126' to each side of the equation. -126 + 18x + 126 + x2 = 0 + 126 Reorder the terms: -126 + 126 + 18x + x2 = 0 + 126 Combine like terms: -126 + 126 = 0 0 + 18x + x2 = 0 + 126 18x + x2 = 0 + 126 Combine like terms: 0 + 126 = 126 18x + x2 = 126 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 = 126 + 81 Reorder the terms: 81 + 18x + x2 = 126 + 81 Combine like terms: 126 + 81 = 207 81 + 18x + x2 = 207 Factor a perfect square on the left side: (x + 9)(x + 9) = 207 Calculate the square root of the right side: 14.38749457 Break this problem into two subproblems by setting (x + 9) equal to 14.38749457 and -14.38749457.Subproblem 1
x + 9 = 14.38749457 Simplifying x + 9 = 14.38749457 Reorder the terms: 9 + x = 14.38749457 Solving 9 + x = 14.38749457 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 = 14.38749457 + -9 Combine like terms: 9 + -9 = 0 0 + x = 14.38749457 + -9 x = 14.38749457 + -9 Combine like terms: 14.38749457 + -9 = 5.38749457 x = 5.38749457 Simplifying x = 5.38749457Subproblem 2
x + 9 = -14.38749457 Simplifying x + 9 = -14.38749457 Reorder the terms: 9 + x = -14.38749457 Solving 9 + x = -14.38749457 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 = -14.38749457 + -9 Combine like terms: 9 + -9 = 0 0 + x = -14.38749457 + -9 x = -14.38749457 + -9 Combine like terms: -14.38749457 + -9 = -23.38749457 x = -23.38749457 Simplifying x = -23.38749457Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.38749457, -23.38749457}
| z+(2+i)z=3+5i | | 30+3x+40+2x=180 | | 999=3r | | 24+x=3x+2 | | 26x+-8=9x+5 | | (x-12)*(x+20)=x^2 | | (x-12)*(x+20)=x | | (3x+-4)=0 | | x+220+40=1440 | | 5(3x+-4)=5 | | 6x+-8=15x+5 | | 6x-8=12x+5 | | (3x-4)(x-1)+21-(x-1)(3x+5)=0 | | 5x+4=6+4x | | 9y-5x=10 | | x+(x+40)+(x+40+220)=1440 | | 336=3x*x | | 3x+9=16+2 | | x+(x+40)+(x+40+220)=1400 | | z+y+x=180 | | 8(3n+2)-7= | | 5x-6=-39 | | -3x-8y=-84 | | 5-(x-2)=4x-9 | | (1+s)3=1.15 | | 130+90+x=180 | | 120+90=180 | | 3tan+2=0 | | 8xy-4y/3x-3 | | 3x+7=5x+4 | | (2x+1)(2x+1)+(x+2)(x+2)-x(5x+13)=0 | | -1/2x-5y=5 |