If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + -8x + -13 = 0 Reorder the terms: -13 + -8x + x2 = 0 Solving -13 + -8x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '13' to each side of the equation. -13 + -8x + 13 + x2 = 0 + 13 Reorder the terms: -13 + 13 + -8x + x2 = 0 + 13 Combine like terms: -13 + 13 = 0 0 + -8x + x2 = 0 + 13 -8x + x2 = 0 + 13 Combine like terms: 0 + 13 = 13 -8x + x2 = 13 The x term is -8x. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8x + 16 + x2 = 13 + 16 Reorder the terms: 16 + -8x + x2 = 13 + 16 Combine like terms: 13 + 16 = 29 16 + -8x + x2 = 29 Factor a perfect square on the left side: (x + -4)(x + -4) = 29 Calculate the square root of the right side: 5.385164807 Break this problem into two subproblems by setting (x + -4) equal to 5.385164807 and -5.385164807.Subproblem 1
x + -4 = 5.385164807 Simplifying x + -4 = 5.385164807 Reorder the terms: -4 + x = 5.385164807 Solving -4 + x = 5.385164807 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 5.385164807 + 4 Combine like terms: -4 + 4 = 0 0 + x = 5.385164807 + 4 x = 5.385164807 + 4 Combine like terms: 5.385164807 + 4 = 9.385164807 x = 9.385164807 Simplifying x = 9.385164807Subproblem 2
x + -4 = -5.385164807 Simplifying x + -4 = -5.385164807 Reorder the terms: -4 + x = -5.385164807 Solving -4 + x = -5.385164807 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -5.385164807 + 4 Combine like terms: -4 + 4 = 0 0 + x = -5.385164807 + 4 x = -5.385164807 + 4 Combine like terms: -5.385164807 + 4 = -1.385164807 x = -1.385164807 Simplifying x = -1.385164807Solution
The solution to the problem is based on the solutions from the subproblems. x = {9.385164807, -1.385164807}
| 3v+1=5v-9 | | 0.05(9x+2)=0.45(x+7)-3.05 | | 2x+5=6x-3 | | 0.7*z=21 | | 4x^2+3x=0 | | 7x+11=4x+23 | | 11a+4a= | | (n+6)=6n+36 | | x(n+6)=6n+36 | | 6(5d-9)= | | 4x^3-8x^3-5x=0 | | 3(9c+1)= | | 8x^3-4x^2-2x+1=0 | | 3(6+7y)+2(1-5y)=42 | | y=-x^3+16x^2+7x | | 2v-6=10 | | 9x-100=5x+8 | | 3x-8=20-x | | 2x+543=43 | | 34x=35 | | (2+4)*5+19-18+7+5*(7+1*3)+8= | | 63-7x=29x+15 | | 3x+42=2(x-4) | | 7-10x=43-38x | | 4x+12=-72-10x | | 11-3e=2e-19 | | 6x+23=16x-87 | | 58-2x=7x+18 | | 5-9x=155-44x | | 6x+30=13x-33 | | 5x+11=-124-10x | | 158-6x=4x+18 |