x^2+14x=3

Simple and best practice solution for x^2+14x=3 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=3 equation:


Simplifying
x2 + 14x = 3

Reorder the terms:
14x + x2 = 3

Solving
14x + x2 = 3

Solving for variable 'x'.

Reorder the terms:
-3 + 14x + x2 = 3 + -3

Combine like terms: 3 + -3 = 0
-3 + 14x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + 14x + 3 + x2 = 0 + 3

Reorder the terms:
-3 + 3 + 14x + x2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 14x + x2 = 0 + 3
14x + x2 = 0 + 3

Combine like terms: 0 + 3 = 3
14x + x2 = 3

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 = 3 + 49

Reorder the terms:
49 + 14x + x2 = 3 + 49

Combine like terms: 3 + 49 = 52
49 + 14x + x2 = 52

Factor a perfect square on the left side:
(x + 7)(x + 7) = 52

Calculate the square root of the right side: 7.211102551

Break this problem into two subproblems by setting 
(x + 7) equal to 7.211102551 and -7.211102551.

Subproblem 1

x + 7 = 7.211102551 Simplifying x + 7 = 7.211102551 Reorder the terms: 7 + x = 7.211102551 Solving 7 + x = 7.211102551 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 = 7.211102551 + -7 Combine like terms: 7 + -7 = 0 0 + x = 7.211102551 + -7 x = 7.211102551 + -7 Combine like terms: 7.211102551 + -7 = 0.211102551 x = 0.211102551 Simplifying x = 0.211102551

Subproblem 2

x + 7 = -7.211102551 Simplifying x + 7 = -7.211102551 Reorder the terms: 7 + x = -7.211102551 Solving 7 + x = -7.211102551 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 = -7.211102551 + -7 Combine like terms: 7 + -7 = 0 0 + x = -7.211102551 + -7 x = -7.211102551 + -7 Combine like terms: -7.211102551 + -7 = -14.211102551 x = -14.211102551 Simplifying x = -14.211102551

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.211102551, -14.211102551}

See similar equations:

| 3y^2+13y+16=0 | | 12-4x=x^2 | | x^2+20x=33 | | 4x=-x^2-4 | | Y*7+Y=160 | | 4q^2-16q-15=5 | | -6t(3t-4)=0 | | x^2+4x=23 | | 03-.05x=.06 | | -5y-4x-1=0 | | c=p+3b+2a | | x^2+28x=11 | | x^2+22x=50 | | 0=16t^2+24t+5 | | 4w^2-20w+21=0 | | 8x^4-56x^2= | | x^2+16x=3 | | 3x=x+60 | | 4w^2-20w+37=0 | | x-16=-36 | | (15+5x)=5 | | 4x+8=2(2x+3) | | (x+1)+(x+2)+(x+3)+(x+4)+(x+5)=17 | | 7x+51=96 | | 7x+51=72 | | 12k=10-2k+32 | | x^2+4*x-77=0 | | 9(14-n)=-117 | | 3x^2-30x+175=0 | | 3x^2-30x+78=0 | | 3y=-3x+0 | | 2x-8=22-3x |

Equations solver categories