x^2-11x-13=5x+5

Simple and best practice solution for x^2-11x-13=5x+5 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 x^2-11x-13=5x+5 equation:


Simplifying
x2 + -11x + -13 = 5x + 5

Reorder the terms:
-13 + -11x + x2 = 5x + 5

Reorder the terms:
-13 + -11x + x2 = 5 + 5x

Solving
-13 + -11x + x2 = 5 + 5x

Solving for variable 'x'.

Reorder the terms:
-13 + -5 + -11x + -5x + x2 = 5 + 5x + -5 + -5x

Combine like terms: -13 + -5 = -18
-18 + -11x + -5x + x2 = 5 + 5x + -5 + -5x

Combine like terms: -11x + -5x = -16x
-18 + -16x + x2 = 5 + 5x + -5 + -5x

Reorder the terms:
-18 + -16x + x2 = 5 + -5 + 5x + -5x

Combine like terms: 5 + -5 = 0
-18 + -16x + x2 = 0 + 5x + -5x
-18 + -16x + x2 = 5x + -5x

Combine like terms: 5x + -5x = 0
-18 + -16x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '18' to each side of the equation.
-18 + -16x + 18 + x2 = 0 + 18

Reorder the terms:
-18 + 18 + -16x + x2 = 0 + 18

Combine like terms: -18 + 18 = 0
0 + -16x + x2 = 0 + 18
-16x + x2 = 0 + 18

Combine like terms: 0 + 18 = 18
-16x + x2 = 18

The x term is -16x.  Take half its coefficient (-8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
-16x + 64 + x2 = 18 + 64

Reorder the terms:
64 + -16x + x2 = 18 + 64

Combine like terms: 18 + 64 = 82
64 + -16x + x2 = 82

Factor a perfect square on the left side:
(x + -8)(x + -8) = 82

Calculate the square root of the right side: 9.055385138

Break this problem into two subproblems by setting 
(x + -8) equal to 9.055385138 and -9.055385138.

Subproblem 1

x + -8 = 9.055385138 Simplifying x + -8 = 9.055385138 Reorder the terms: -8 + x = 9.055385138 Solving -8 + x = 9.055385138 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + x = 9.055385138 + 8 Combine like terms: -8 + 8 = 0 0 + x = 9.055385138 + 8 x = 9.055385138 + 8 Combine like terms: 9.055385138 + 8 = 17.055385138 x = 17.055385138 Simplifying x = 17.055385138

Subproblem 2

x + -8 = -9.055385138 Simplifying x + -8 = -9.055385138 Reorder the terms: -8 + x = -9.055385138 Solving -8 + x = -9.055385138 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + x = -9.055385138 + 8 Combine like terms: -8 + 8 = 0 0 + x = -9.055385138 + 8 x = -9.055385138 + 8 Combine like terms: -9.055385138 + 8 = -1.055385138 x = -1.055385138 Simplifying x = -1.055385138

Solution

The solution to the problem is based on the solutions from the subproblems. x = {17.055385138, -1.055385138}

See similar equations:

| X-7=8x-6 | | y^2+9/2-5/2 | | 3ab+7ab= | | 3c+4=5c+6 | | X^2+9xy+12y^2=0 | | 4/3x^2-2/7x | | 8=4(v+4) | | (-5.6a^2-9.8a)-(0.6a^2-3.8a+26.4)= | | (7+3i)/(5+3i) | | 10+10*4= | | (9x+8)-(4x-11)= | | 425=N-(75+175) | | (x.2)=10 | | (1.1x^2+2.6x-6.4)-(5.2x^2+4.8x+13.4)= | | X^2-12x+27=27 | | y^2-7y+12=-0 | | 4x+1=9+4y | | 36x^3+29x=-1377 | | (2a^2b-7ab+6b^2)-(5ab-3b^2-4a^2b)= | | 4(2x-3)=24 | | 4(A+3)=4+12 | | (3x^2-6x+3)/(x^2-1)^2 | | 4(2y-4)+2=5y+2 | | (8a-5b+3c)-(-9a+6b-4c)= | | -3(2n-1)+7=-4+2n | | 0.7w-2/3=4/5 | | -80z-0.2=-90z+1.2 | | -80z-0.5=-90z+1.2 | | 5r+3u-2r+7u= | | 5x-4=40x+10 | | x+2.3=-7 | | 4x^2-9x+16=6x+2 |

Equations solver categories