x^2-14x=11

Simple and best practice solution for x^2-14x=11 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^2-14x=11 equation:


Simplifying
x2 + -14x = 11

Reorder the terms:
-14x + x2 = 11

Solving
-14x + x2 = 11

Solving for variable 'x'.

Reorder the terms:
-11 + -14x + x2 = 11 + -11

Combine like terms: 11 + -11 = 0
-11 + -14x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '11' to each side of the equation.
-11 + -14x + 11 + x2 = 0 + 11

Reorder the terms:
-11 + 11 + -14x + x2 = 0 + 11

Combine like terms: -11 + 11 = 0
0 + -14x + x2 = 0 + 11
-14x + x2 = 0 + 11

Combine like terms: 0 + 11 = 11
-14x + x2 = 11

The x term is -14x.  Take half its coefficient (-7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
-14x + 49 + x2 = 11 + 49

Reorder the terms:
49 + -14x + x2 = 11 + 49

Combine like terms: 11 + 49 = 60
49 + -14x + x2 = 60

Factor a perfect square on the left side:
(x + -7)(x + -7) = 60

Calculate the square root of the right side: 7.745966692

Break this problem into two subproblems by setting 
(x + -7) equal to 7.745966692 and -7.745966692.

Subproblem 1

x + -7 = 7.745966692 Simplifying x + -7 = 7.745966692 Reorder the terms: -7 + x = 7.745966692 Solving -7 + x = 7.745966692 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + x = 7.745966692 + 7 Combine like terms: -7 + 7 = 0 0 + x = 7.745966692 + 7 x = 7.745966692 + 7 Combine like terms: 7.745966692 + 7 = 14.745966692 x = 14.745966692 Simplifying x = 14.745966692

Subproblem 2

x + -7 = -7.745966692 Simplifying x + -7 = -7.745966692 Reorder the terms: -7 + x = -7.745966692 Solving -7 + x = -7.745966692 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + x = -7.745966692 + 7 Combine like terms: -7 + 7 = 0 0 + x = -7.745966692 + 7 x = -7.745966692 + 7 Combine like terms: -7.745966692 + 7 = -0.745966692 x = -0.745966692 Simplifying x = -0.745966692

Solution

The solution to the problem is based on the solutions from the subproblems. x = {14.745966692, -0.745966692}

See similar equations:

| ln(3x+7)=ln(6x-2) | | -(35)= | | 1960=4.9t(50-t) | | 0=4.9t(400-t) | | 5x+4x^2-57=0 | | y+2=0.92(x+7) | | 572-(-25)= | | 15y=3(y+8) | | x=1/2(7x-20) | | m=5a | | 6(-10)(-3)= | | 5a^2-7ab-6b^2=0 | | y+2=12(x+7) | | 67-(4x+3)=4(x+7)+x | | 7+4(-8)= | | t=m+2m | | 6+9=3+6+c | | 6x^2+5x-3=0 | | 6(-7)-(-13)= | | 4ln(7x)=12 | | 196=16 | | 196= | | 0.7+y=-1034 | | 4x^2+16x=9 | | -9+p=12 | | 6x+32=-2x | | 6y+5x= | | 12x*x+5x-3=0 | | x^2+12x+10=0 | | x^2+3x=-1 | | Y^2-2*Y=6*X | | 10x+4y+2x= |

Equations solver categories