x^2+4x=297

Simple and best practice solution for x^2+4x=297 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=297 equation:


Simplifying
x2 + 4x = 297

Reorder the terms:
4x + x2 = 297

Solving
4x + x2 = 297

Solving for variable 'x'.

Reorder the terms:
-297 + 4x + x2 = 297 + -297

Combine like terms: 297 + -297 = 0
-297 + 4x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '297' to each side of the equation.
-297 + 4x + 297 + x2 = 0 + 297

Reorder the terms:
-297 + 297 + 4x + x2 = 0 + 297

Combine like terms: -297 + 297 = 0
0 + 4x + x2 = 0 + 297
4x + x2 = 0 + 297

Combine like terms: 0 + 297 = 297
4x + x2 = 297

The x term is 4x.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4x + 4 + x2 = 297 + 4

Reorder the terms:
4 + 4x + x2 = 297 + 4

Combine like terms: 297 + 4 = 301
4 + 4x + x2 = 301

Factor a perfect square on the left side:
(x + 2)(x + 2) = 301

Calculate the square root of the right side: 17.349351573

Break this problem into two subproblems by setting 
(x + 2) equal to 17.349351573 and -17.349351573.

Subproblem 1

x + 2 = 17.349351573 Simplifying x + 2 = 17.349351573 Reorder the terms: 2 + x = 17.349351573 Solving 2 + x = 17.349351573 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 17.349351573 + -2 Combine like terms: 2 + -2 = 0 0 + x = 17.349351573 + -2 x = 17.349351573 + -2 Combine like terms: 17.349351573 + -2 = 15.349351573 x = 15.349351573 Simplifying x = 15.349351573

Subproblem 2

x + 2 = -17.349351573 Simplifying x + 2 = -17.349351573 Reorder the terms: 2 + x = -17.349351573 Solving 2 + x = -17.349351573 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -17.349351573 + -2 Combine like terms: 2 + -2 = 0 0 + x = -17.349351573 + -2 x = -17.349351573 + -2 Combine like terms: -17.349351573 + -2 = -19.349351573 x = -19.349351573 Simplifying x = -19.349351573

Solution

The solution to the problem is based on the solutions from the subproblems. x = {15.349351573, -19.349351573}

See similar equations:

| 2.1x+4.1y=289670 | | s^2+0.25s+0.1125=0 | | logx=17.55 | | s^2+0.25s+0.25=0 | | 1.1(-0.3+10)=7.7 | | x^2+16x=208 | | 4x^2-21=18 | | x^2-148x+576=0 | | 1/10x5/19 | | -1.6n=0.032 | | 4x^2=10x+126 | | 241/2b | | 34+y=50 | | 55=15+0.1x+0.0003x^2 | | y+3=-3(x-9) | | 3.7(4x+3)= | | 15=3(v-3)-6v | | 0.6(7k+3.4)=1.2 | | 0.6(0.7+3.4)=1.2 | | 4x+5y-8=0 | | 4p+10=5(2p+3) | | 800=8x+30 | | 2p+7=10-3 | | 63=2.6-3.6+8y | | 6j-3(4)=15 | | -4=w/7-18÷2 | | 4(3+y)=10 | | 12a+5a=60+4 | | -16-6x=1 | | -5yx(-6y)= | | 3(0.6+2y)=10.8 | | (4/3)x(3/4) |

Equations solver categories