13x^2-13x-10=0

Simple and best practice solution for 13x^2-13x-10=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 13x^2-13x-10=0 equation:


Simplifying
13x2 + -13x + -10 = 0

Reorder the terms:
-10 + -13x + 13x2 = 0

Solving
-10 + -13x + 13x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
13 the coefficient of the squared term: 

Divide each side by '13'.
-0.7692307692 + -1x + x2 = 0

Move the constant term to the right:

Add '0.7692307692' to each side of the equation.
-0.7692307692 + -1x + 0.7692307692 + x2 = 0 + 0.7692307692

Reorder the terms:
-0.7692307692 + 0.7692307692 + -1x + x2 = 0 + 0.7692307692

Combine like terms: -0.7692307692 + 0.7692307692 = 0.0000000000
0.0000000000 + -1x + x2 = 0 + 0.7692307692
-1x + x2 = 0 + 0.7692307692

Combine like terms: 0 + 0.7692307692 = 0.7692307692
-1x + x2 = 0.7692307692

The x term is -1x.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x + 0.25 + x2 = 0.7692307692 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 0.7692307692 + 0.25

Combine like terms: 0.7692307692 + 0.25 = 1.0192307692
0.25 + -1x + x2 = 1.0192307692

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 1.0192307692

Calculate the square root of the right side: 1.009569596

Break this problem into two subproblems by setting 
(x + -0.5) equal to 1.009569596 and -1.009569596.

Subproblem 1

x + -0.5 = 1.009569596 Simplifying x + -0.5 = 1.009569596 Reorder the terms: -0.5 + x = 1.009569596 Solving -0.5 + x = 1.009569596 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = 1.009569596 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 1.009569596 + 0.5 x = 1.009569596 + 0.5 Combine like terms: 1.009569596 + 0.5 = 1.509569596 x = 1.509569596 Simplifying x = 1.509569596

Subproblem 2

x + -0.5 = -1.009569596 Simplifying x + -0.5 = -1.009569596 Reorder the terms: -0.5 + x = -1.009569596 Solving -0.5 + x = -1.009569596 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = -1.009569596 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -1.009569596 + 0.5 x = -1.009569596 + 0.5 Combine like terms: -1.009569596 + 0.5 = -0.509569596 x = -0.509569596 Simplifying x = -0.509569596

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.509569596, -0.509569596}

See similar equations:

| 8x+4=58-x | | 64=4p | | 42-4x=5x+19 | | 3x^2-13x=10 | | 14-10x=89-31x | | -84-10x=10x+16 | | -5x+8=-4 | | 4x+14=-116-x | | -(2+0.1x)=-x-2(0.2+x) | | 2u+3=7u+18 | | 5b^2=-2b+7 | | 7u+(-u)= | | -3+(6z+8)=-(-2z+4)-7 | | 7u-2u= | | x^2-9x+5=0 | | 2x+12=5x-1 | | f(0)=4x(x-11)(x+7) | | -6-8(-6y-7)=7(4y+9)+4 | | 8-x=18-3x | | Y^2+4y+4=4 | | 7u-u= | | 4x^4-x^2=0 | | 2+8x=57-3x | | 3(3x+5)=7(x+4)+5 | | 3x+23=7x-1 | | x^3+9x^2+3x+27=0 | | A=p(1+nr) | | 8(3x-5)=7(x-5)+9 | | 8+12x=74+x | | 33+7x=23+2x | | 7x^2-8x-12=0 | | 6x+21=13x-56 |

Equations solver categories