x^2-7x-x+14=0

Simple and best practice solution for x^2-7x-x+14=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 x^2-7x-x+14=0 equation:


Simplifying
x2 + -7x + -1x + 14 = 0

Reorder the terms:
14 + -7x + -1x + x2 = 0

Combine like terms: -7x + -1x = -8x
14 + -8x + x2 = 0

Solving
14 + -8x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-14' to each side of the equation.
14 + -8x + -14 + x2 = 0 + -14

Reorder the terms:
14 + -14 + -8x + x2 = 0 + -14

Combine like terms: 14 + -14 = 0
0 + -8x + x2 = 0 + -14
-8x + x2 = 0 + -14

Combine like terms: 0 + -14 = -14
-8x + x2 = -14

The x term is -8x.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8x + 16 + x2 = -14 + 16

Reorder the terms:
16 + -8x + x2 = -14 + 16

Combine like terms: -14 + 16 = 2
16 + -8x + x2 = 2

Factor a perfect square on the left side:
(x + -4)(x + -4) = 2

Calculate the square root of the right side: 1.414213562

Break this problem into two subproblems by setting 
(x + -4) equal to 1.414213562 and -1.414213562.

Subproblem 1

x + -4 = 1.414213562 Simplifying x + -4 = 1.414213562 Reorder the terms: -4 + x = 1.414213562 Solving -4 + x = 1.414213562 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 1.414213562 + 4 Combine like terms: -4 + 4 = 0 0 + x = 1.414213562 + 4 x = 1.414213562 + 4 Combine like terms: 1.414213562 + 4 = 5.414213562 x = 5.414213562 Simplifying x = 5.414213562

Subproblem 2

x + -4 = -1.414213562 Simplifying x + -4 = -1.414213562 Reorder the terms: -4 + x = -1.414213562 Solving -4 + x = -1.414213562 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -1.414213562 + 4 Combine like terms: -4 + 4 = 0 0 + x = -1.414213562 + 4 x = -1.414213562 + 4 Combine like terms: -1.414213562 + 4 = 2.585786438 x = 2.585786438 Simplifying x = 2.585786438

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.414213562, 2.585786438}

See similar equations:

| x/9.2=2 | | -5x-36=-4(3x-5) | | 4(x+3)=4(x+12) | | 2x+13=6x+1 | | 13=2x+1 | | -16x=-18 | | (6-y)(5y+2)=0 | | 14+3y=8 | | 50-x=35 | | 15+7n-(-9n)= | | (4a-4b^2-a)+(b-4+8a^2)= | | 8T-5+10+T= | | 2=-x+3 | | (u^2-4)/(u-6)(u-2) | | 41-(3/8x)=-22 | | (40ab-24a²)//45b²-27cb) | | -a(10a-2)=0 | | http://x/12=x/13-13 | | 2z-z=4 | | -68/-4= | | 7a-(-b)=.6b+14 | | X(-6x)+10x+9=-7(x-2) | | 5x=-180 | | x(7-4)=28 | | 5y+4x=27 | | 2b+10=-12 | | (X^5-2y)dx-xdy=0 | | X/5=-40 | | 5/2×-3/2=7/2 | | 8(k-6)-(7k+7)=-7 | | x/9.5=2 | | 8aw-12=-4 |

Equations solver categories