If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 20x + 13 = 0 Reorder the terms: 13 + 20x + x2 = 0 Solving 13 + 20x + 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 + 20x + -13 + x2 = 0 + -13 Reorder the terms: 13 + -13 + 20x + x2 = 0 + -13 Combine like terms: 13 + -13 = 0 0 + 20x + x2 = 0 + -13 20x + x2 = 0 + -13 Combine like terms: 0 + -13 = -13 20x + x2 = -13 The x term is 20x. Take half its coefficient (10). Square it (100) and add it to both sides. Add '100' to each side of the equation. 20x + 100 + x2 = -13 + 100 Reorder the terms: 100 + 20x + x2 = -13 + 100 Combine like terms: -13 + 100 = 87 100 + 20x + x2 = 87 Factor a perfect square on the left side: (x + 10)(x + 10) = 87 Calculate the square root of the right side: 9.327379053 Break this problem into two subproblems by setting (x + 10) equal to 9.327379053 and -9.327379053.Subproblem 1
x + 10 = 9.327379053 Simplifying x + 10 = 9.327379053 Reorder the terms: 10 + x = 9.327379053 Solving 10 + x = 9.327379053 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = 9.327379053 + -10 Combine like terms: 10 + -10 = 0 0 + x = 9.327379053 + -10 x = 9.327379053 + -10 Combine like terms: 9.327379053 + -10 = -0.672620947 x = -0.672620947 Simplifying x = -0.672620947Subproblem 2
x + 10 = -9.327379053 Simplifying x + 10 = -9.327379053 Reorder the terms: 10 + x = -9.327379053 Solving 10 + x = -9.327379053 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = -9.327379053 + -10 Combine like terms: 10 + -10 = 0 0 + x = -9.327379053 + -10 x = -9.327379053 + -10 Combine like terms: -9.327379053 + -10 = -19.327379053 x = -19.327379053 Simplifying x = -19.327379053Solution
The solution to the problem is based on the solutions from the subproblems. x = {-0.672620947, -19.327379053}
| 51-5x=4x+17 | | 2x-10=3x | | 276-6x=39x+16 | | 13x-8y=-40 | | 7x^2+22x-10=3x-4 | | 30s^2+25s+36s+30= | | 25/20=15/x | | x-5y=-13 | | 4y-7x=11 | | 2*3/7-1/3*(3-6/7)+1 | | -110+6x=0 | | 9x-4y=4 | | 8(-1)+5-(-1)=-2 | | 18a+30= | | 10x+8=38+x | | 3/-7=-9/t | | (8x-2)(3x+4)=(4x+3)(6x-1) | | 5x^3+15x=0 | | y=-0.70(50)+136 | | y=-0.70(40)+136 | | 6/15=a/4 | | 6/15=9/4 | | y=-0.70(30)+136 | | -8/2 | | 26=-8+10-3(-8) | | -12720+20x= | | x+r/t+1=0 | | X-2=11x | | y/4+3=7 | | y=-0.70(20)+136 | | 85-6x=12x+23 | | -2p/45=7/25 |