If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -5x2 + 20x + -13 = 0 Reorder the terms: -13 + 20x + -5x2 = 0 Solving -13 + 20x + -5x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -5 the coefficient of the squared term: Divide each side by '-5'. 2.6 + -4x + x2 = 0 Move the constant term to the right: Add '-2.6' to each side of the equation. 2.6 + -4x + -2.6 + x2 = 0 + -2.6 Reorder the terms: 2.6 + -2.6 + -4x + x2 = 0 + -2.6 Combine like terms: 2.6 + -2.6 = 0.0 0.0 + -4x + x2 = 0 + -2.6 -4x + x2 = 0 + -2.6 Combine like terms: 0 + -2.6 = -2.6 -4x + x2 = -2.6 The x term is -4x. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4x + 4 + x2 = -2.6 + 4 Reorder the terms: 4 + -4x + x2 = -2.6 + 4 Combine like terms: -2.6 + 4 = 1.4 4 + -4x + x2 = 1.4 Factor a perfect square on the left side: (x + -2)(x + -2) = 1.4 Calculate the square root of the right side: 1.183215957 Break this problem into two subproblems by setting (x + -2) equal to 1.183215957 and -1.183215957.Subproblem 1
x + -2 = 1.183215957 Simplifying x + -2 = 1.183215957 Reorder the terms: -2 + x = 1.183215957 Solving -2 + x = 1.183215957 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 1.183215957 + 2 Combine like terms: -2 + 2 = 0 0 + x = 1.183215957 + 2 x = 1.183215957 + 2 Combine like terms: 1.183215957 + 2 = 3.183215957 x = 3.183215957 Simplifying x = 3.183215957Subproblem 2
x + -2 = -1.183215957 Simplifying x + -2 = -1.183215957 Reorder the terms: -2 + x = -1.183215957 Solving -2 + x = -1.183215957 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = -1.183215957 + 2 Combine like terms: -2 + 2 = 0 0 + x = -1.183215957 + 2 x = -1.183215957 + 2 Combine like terms: -1.183215957 + 2 = 0.816784043 x = 0.816784043 Simplifying x = 0.816784043Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.183215957, 0.816784043}
| 12-6x=6x-10 | | 7x-2=47 | | 5x-12=4x+6 | | 2x^4-4x^3-30x^2=0 | | y=2.5x+0 | | 2+5(3x-1)=4(2x-3)+2(x-3) | | 4(3x+2)-6x=8 | | 43+9x=7 | | 3x-12=6x+18 | | y=0.6x+-7 | | -3x+4=12 | | X=842-97 | | (x+9)(x+17)=0 | | 4(3x-11)=44 | | 2(2+K)=18-2(2K-5) | | 6-22x=12 | | x(6+3)=2x+28 | | 0.1(2.4x+5)=1.7 | | 4x-10=-3 | | 4x+4=9+2x | | y=5x+-3 | | a^2bc=0.2xc | | 3(3+4x)-3=42 | | -8x-3=10+3x | | 5x^2+7x=0 | | 12x^2+7x+1=0 | | 9x-2+21=10-7 | | -y=x | | -56x^2-12x+8=0 | | -y=0.2x+6 | | 8x^2+2=8x^2 | | 30x^2+40x+10=0 |