If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 2x + -81 = 0 Reorder the terms: -81 + 2x + x2 = 0 Solving -81 + 2x + 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 + 2x + 81 + x2 = 0 + 81 Reorder the terms: -81 + 81 + 2x + x2 = 0 + 81 Combine like terms: -81 + 81 = 0 0 + 2x + x2 = 0 + 81 2x + x2 = 0 + 81 Combine like terms: 0 + 81 = 81 2x + x2 = 81 The x term is 2x. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2x + 1 + x2 = 81 + 1 Reorder the terms: 1 + 2x + x2 = 81 + 1 Combine like terms: 81 + 1 = 82 1 + 2x + x2 = 82 Factor a perfect square on the left side: (x + 1)(x + 1) = 82 Calculate the square root of the right side: 9.055385138 Break this problem into two subproblems by setting (x + 1) equal to 9.055385138 and -9.055385138.Subproblem 1
x + 1 = 9.055385138 Simplifying x + 1 = 9.055385138 Reorder the terms: 1 + x = 9.055385138 Solving 1 + x = 9.055385138 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 9.055385138 + -1 Combine like terms: 1 + -1 = 0 0 + x = 9.055385138 + -1 x = 9.055385138 + -1 Combine like terms: 9.055385138 + -1 = 8.055385138 x = 8.055385138 Simplifying x = 8.055385138Subproblem 2
x + 1 = -9.055385138 Simplifying x + 1 = -9.055385138 Reorder the terms: 1 + x = -9.055385138 Solving 1 + x = -9.055385138 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -9.055385138 + -1 Combine like terms: 1 + -1 = 0 0 + x = -9.055385138 + -1 x = -9.055385138 + -1 Combine like terms: -9.055385138 + -1 = -10.055385138 x = -10.055385138 Simplifying x = -10.055385138Solution
The solution to the problem is based on the solutions from the subproblems. x = {8.055385138, -10.055385138}
| -z+11=-7 | | -6x-x=-6-4x | | 0=6(10-a) | | 4k-2k-4= | | -5n-6=-5n-2n | | 8(9+t)=104 | | 6n-10=-2+8n | | 20=4(x+1) | | 2r-7=-11+r | | 3(c-2)=18 | | 8y+8=37y-7 | | 14=7(k-4) | | 5x-(4x+2)=2x-10 | | 2.6x+1.8=2.4x+22 | | 2(m-5)=8 | | -6x-12x=-126 | | 60x-9= | | 25=5(z+4) | | 9(6x-1)+6x= | | x+9=7(x-9)-6x | | 26x+74y= | | 22p+5p^2=-8 | | 26x+42y= | | 78x+74y= | | (52x+58y)-(-26x+16y)= | | 3x+7y=87 | | 7h+5h=580 | | 7y+5=8y-7+6y | | 14+-3y=5y+20 | | 7x+5=8x-7+6x | | 12x+46= | | 4r=3r+2 |