14x=18-x^2

Simple and best practice solution for 14x=18-x^2 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 14x=18-x^2 equation:


Simplifying
14x = 18 + -1x2

Solving
14x = 18 + -1x2

Solving for variable 'x'.

Reorder the terms:
-18 + 14x + x2 = 18 + -1x2 + -18 + x2

Reorder the terms:
-18 + 14x + x2 = 18 + -18 + -1x2 + x2

Combine like terms: 18 + -18 = 0
-18 + 14x + x2 = 0 + -1x2 + x2
-18 + 14x + x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
-18 + 14x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '18' to each side of the equation.
-18 + 14x + 18 + x2 = 0 + 18

Reorder the terms:
-18 + 18 + 14x + x2 = 0 + 18

Combine like terms: -18 + 18 = 0
0 + 14x + x2 = 0 + 18
14x + x2 = 0 + 18

Combine like terms: 0 + 18 = 18
14x + x2 = 18

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 = 18 + 49

Reorder the terms:
49 + 14x + x2 = 18 + 49

Combine like terms: 18 + 49 = 67
49 + 14x + x2 = 67

Factor a perfect square on the left side:
(x + 7)(x + 7) = 67

Calculate the square root of the right side: 8.185352772

Break this problem into two subproblems by setting 
(x + 7) equal to 8.185352772 and -8.185352772.

Subproblem 1

x + 7 = 8.185352772 Simplifying x + 7 = 8.185352772 Reorder the terms: 7 + x = 8.185352772 Solving 7 + x = 8.185352772 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 = 8.185352772 + -7 Combine like terms: 7 + -7 = 0 0 + x = 8.185352772 + -7 x = 8.185352772 + -7 Combine like terms: 8.185352772 + -7 = 1.185352772 x = 1.185352772 Simplifying x = 1.185352772

Subproblem 2

x + 7 = -8.185352772 Simplifying x + 7 = -8.185352772 Reorder the terms: 7 + x = -8.185352772 Solving 7 + x = -8.185352772 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 = -8.185352772 + -7 Combine like terms: 7 + -7 = 0 0 + x = -8.185352772 + -7 x = -8.185352772 + -7 Combine like terms: -8.185352772 + -7 = -15.185352772 x = -15.185352772 Simplifying x = -15.185352772

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.185352772, -15.185352772}

See similar equations:

| 3.4+d=8 | | -2p+4=-(5p+1) | | 54+3=28 | | P+3=15 | | 3/16-3/4 | | 8y-6(y+5)=3x(3y-3) | | 5x^2=26x | | 4/5-r=-21/4 | | N*2+8=-12 | | 8-3/x=16 | | 6/0.12 | | -7.2(c-15.6)=-9 | | 2(a+4)+a=22 | | X^-1/2-2x^-3/2 | | sin30=8/x | | 0.5=sin^2(x) | | 15(x+1)-7x+63=4x | | 324=25+112 | | 10x-2x+64=10x+32 | | 2(x-3)+5=6x-3-3x | | 150=95+n | | r/415 | | x+(5x)=78 | | 23.25m+26=17.75m+39 | | k-1=2 | | 26m+23.25=39m+17.75 | | 20-2y=24 | | 3(x+6)=2x+8 | | 5x+3-2x=27 | | u+4=8 | | x-0.4=0.06 | | -3(4x-1)=39 |

Equations solver categories