If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 27x + -81 = 0 Reorder the terms: -81 + 27x + x2 = 0 Solving -81 + 27x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '81' to each side of the equation. -81 + 27x + 81 + x2 = 0 + 81 Reorder the terms: -81 + 81 + 27x + x2 = 0 + 81 Combine like terms: -81 + 81 = 0 0 + 27x + x2 = 0 + 81 27x + x2 = 0 + 81 Combine like terms: 0 + 81 = 81 27x + x2 = 81 The x term is 27x. Take half its coefficient (13.5). Square it (182.25) and add it to both sides. Add '182.25' to each side of the equation. 27x + 182.25 + x2 = 81 + 182.25 Reorder the terms: 182.25 + 27x + x2 = 81 + 182.25 Combine like terms: 81 + 182.25 = 263.25 182.25 + 27x + x2 = 263.25 Factor a perfect square on the left side: (x + 13.5)(x + 13.5) = 263.25 Calculate the square root of the right side: 16.22498074 Break this problem into two subproblems by setting (x + 13.5) equal to 16.22498074 and -16.22498074.Subproblem 1
x + 13.5 = 16.22498074 Simplifying x + 13.5 = 16.22498074 Reorder the terms: 13.5 + x = 16.22498074 Solving 13.5 + x = 16.22498074 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-13.5' to each side of the equation. 13.5 + -13.5 + x = 16.22498074 + -13.5 Combine like terms: 13.5 + -13.5 = 0.0 0.0 + x = 16.22498074 + -13.5 x = 16.22498074 + -13.5 Combine like terms: 16.22498074 + -13.5 = 2.72498074 x = 2.72498074 Simplifying x = 2.72498074Subproblem 2
x + 13.5 = -16.22498074 Simplifying x + 13.5 = -16.22498074 Reorder the terms: 13.5 + x = -16.22498074 Solving 13.5 + x = -16.22498074 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-13.5' to each side of the equation. 13.5 + -13.5 + x = -16.22498074 + -13.5 Combine like terms: 13.5 + -13.5 = 0.0 0.0 + x = -16.22498074 + -13.5 x = -16.22498074 + -13.5 Combine like terms: -16.22498074 + -13.5 = -29.72498074 x = -29.72498074 Simplifying x = -29.72498074Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.72498074, -29.72498074}
| 9-3+4*5=X | | 50X+5=590 | | 6x-15+3x+15=180 | | 5x+4-2(x-3)=0 | | X+5=590 | | 9-3+4*5= | | y=2+.2x | | -45-(-4)=x/4 | | m=35-30/50-35 | | X+2.5x=55 | | y=12-.8x | | 29x+11=29x-11 | | 8x+15=2x-15 | | -7.2(x-1/4)=3/7 | | 23.8=3.5f | | 15=90 | | 29x+92=29x-11 | | -3/83x-4/81/2 | | 3y-5+y=4y+1 | | Xy^4-x^3y=0 | | 5cos^2(x)-5=0 | | 5(3a+4)-19= | | x^2+y^2+4xy=1 | | [y-3]=7 | | a=3*3.14rh | | 5(2a+4)-9= | | 4x+4(3)=44 | | n^3-3n-64=0 | | 3-2m=-4m+7 | | 3y+x+20=180 | | 3(4a+2)-5= | | 6x-15=3x+15 |