If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 13x + -39 = 0 Reorder the terms: -39 + 13x + x2 = 0 Solving -39 + 13x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '39' to each side of the equation. -39 + 13x + 39 + x2 = 0 + 39 Reorder the terms: -39 + 39 + 13x + x2 = 0 + 39 Combine like terms: -39 + 39 = 0 0 + 13x + x2 = 0 + 39 13x + x2 = 0 + 39 Combine like terms: 0 + 39 = 39 13x + x2 = 39 The x term is 13x. Take half its coefficient (6.5). Square it (42.25) and add it to both sides. Add '42.25' to each side of the equation. 13x + 42.25 + x2 = 39 + 42.25 Reorder the terms: 42.25 + 13x + x2 = 39 + 42.25 Combine like terms: 39 + 42.25 = 81.25 42.25 + 13x + x2 = 81.25 Factor a perfect square on the left side: (x + 6.5)(x + 6.5) = 81.25 Calculate the square root of the right side: 9.013878189 Break this problem into two subproblems by setting (x + 6.5) equal to 9.013878189 and -9.013878189.Subproblem 1
x + 6.5 = 9.013878189 Simplifying x + 6.5 = 9.013878189 Reorder the terms: 6.5 + x = 9.013878189 Solving 6.5 + x = 9.013878189 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6.5' to each side of the equation. 6.5 + -6.5 + x = 9.013878189 + -6.5 Combine like terms: 6.5 + -6.5 = 0.0 0.0 + x = 9.013878189 + -6.5 x = 9.013878189 + -6.5 Combine like terms: 9.013878189 + -6.5 = 2.513878189 x = 2.513878189 Simplifying x = 2.513878189Subproblem 2
x + 6.5 = -9.013878189 Simplifying x + 6.5 = -9.013878189 Reorder the terms: 6.5 + x = -9.013878189 Solving 6.5 + x = -9.013878189 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6.5' to each side of the equation. 6.5 + -6.5 + x = -9.013878189 + -6.5 Combine like terms: 6.5 + -6.5 = 0.0 0.0 + x = -9.013878189 + -6.5 x = -9.013878189 + -6.5 Combine like terms: -9.013878189 + -6.5 = -15.513878189 x = -15.513878189 Simplifying x = -15.513878189Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.513878189, -15.513878189}
| -5=7x | | 8x^4-40x^3+50x^2=0 | | 3x-2/3=7/5x-1/2 | | 320+80x=2460 | | 2x(x-1)=91 | | 4x-9y=14fory | | 320x+80x=2640 | | -x^3+10x^2-8x-11=0 | | 4-10+5= | | 2-(2/3)*x | | y=2-(2/3)*x | | 3(x-4)+6x=24 | | 14.95+.13x=-15.398x | | 5(x-1)-3=2x+3(-2+x) | | M-m/2-1=1m-2/3 | | 97.62/120 | | x+2y=32x+y=6 | | 4x-(10-2x)=14 | | 3x^2-87x+364=0 | | 625(x+3)=25(x+12) | | y=1.2+0.8(ln(x)) | | -2x+7x-3=0 | | 3x-4x-10/2=7-5x | | 6x-16+77=7z | | 7t-5=-15 | | x-14x=1 | | m^2+6m-40=0 | | 10(2/6.8)^2 | | 14-3(2x-5)=2x-3 | | 3cosx=2.7 | | 48-9x=16+7x | | (9x^2-5x-27)+(4x^2+8x)= |