x^2+4x=2x+14

Simple and best practice solution for x^2+4x=2x+14 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+4x=2x+14 equation:


Simplifying
x2 + 4x = 2x + 14

Reorder the terms:
4x + x2 = 2x + 14

Reorder the terms:
4x + x2 = 14 + 2x

Solving
4x + x2 = 14 + 2x

Solving for variable 'x'.

Reorder the terms:
-14 + 4x + -2x + x2 = 14 + 2x + -14 + -2x

Combine like terms: 4x + -2x = 2x
-14 + 2x + x2 = 14 + 2x + -14 + -2x

Reorder the terms:
-14 + 2x + x2 = 14 + -14 + 2x + -2x

Combine like terms: 14 + -14 = 0
-14 + 2x + x2 = 0 + 2x + -2x
-14 + 2x + x2 = 2x + -2x

Combine like terms: 2x + -2x = 0
-14 + 2x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '14' to each side of the equation.
-14 + 2x + 14 + x2 = 0 + 14

Reorder the terms:
-14 + 14 + 2x + x2 = 0 + 14

Combine like terms: -14 + 14 = 0
0 + 2x + x2 = 0 + 14
2x + x2 = 0 + 14

Combine like terms: 0 + 14 = 14
2x + x2 = 14

The x term is 2x.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2x + 1 + x2 = 14 + 1

Reorder the terms:
1 + 2x + x2 = 14 + 1

Combine like terms: 14 + 1 = 15
1 + 2x + x2 = 15

Factor a perfect square on the left side:
(x + 1)(x + 1) = 15

Calculate the square root of the right side: 3.872983346

Break this problem into two subproblems by setting 
(x + 1) equal to 3.872983346 and -3.872983346.

Subproblem 1

x + 1 = 3.872983346 Simplifying x + 1 = 3.872983346 Reorder the terms: 1 + x = 3.872983346 Solving 1 + x = 3.872983346 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 3.872983346 + -1 Combine like terms: 1 + -1 = 0 0 + x = 3.872983346 + -1 x = 3.872983346 + -1 Combine like terms: 3.872983346 + -1 = 2.872983346 x = 2.872983346 Simplifying x = 2.872983346

Subproblem 2

x + 1 = -3.872983346 Simplifying x + 1 = -3.872983346 Reorder the terms: 1 + x = -3.872983346 Solving 1 + x = -3.872983346 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -3.872983346 + -1 Combine like terms: 1 + -1 = 0 0 + x = -3.872983346 + -1 x = -3.872983346 + -1 Combine like terms: -3.872983346 + -1 = -4.872983346 x = -4.872983346 Simplifying x = -4.872983346

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.872983346, -4.872983346}

See similar equations:

| -2n^2-4n+11n^2= | | -25n=72 | | (7x-8y+8)-2(-7x+8y-8)= | | w-5.2=7.3 | | 3x-2y+z=1 | | y+12=(y+3) | | m/2-6=m/4+2 | | 4x^3-20x^2+16x=0 | | -7x+x-5=-59 | | 4y-3(x-2)=22 | | 6y+5=13 | | 6y+5=1 | | 7x+6x+8=8 | | 1/4(5x-8)=3 | | 6x+9=13x+8 | | 1/2x+4=-2/3x+1/2 | | 6x^3+9x^2+2x+3=0 | | xy^2+x^2y=4 | | 7(2h+1)+3(2h-9)=3(3h+1)-1 | | 3x(x+5)=40 | | 5y+x=-3+4y | | 15+(-4)(a+-5)= | | -15/1.5x | | 23-(x+8)=9x-5 | | 9x-5y=0 | | -3x+x+3=-5 | | 3/5x+7=-5/3x+20 | | 15/1.5x | | 594*126= | | 9/7(n-57) | | 3r-2r-8=8r+10 | | 4c-2c(14+d)= |

Equations solver categories