4x+x^2=242

Simple and best practice solution for 4x+x^2=242 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 4x+x^2=242 equation:


Simplifying
4x + x2 = 242

Solving
4x + x2 = 242

Solving for variable 'x'.

Reorder the terms:
-242 + 4x + x2 = 242 + -242

Combine like terms: 242 + -242 = 0
-242 + 4x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '242' to each side of the equation.
-242 + 4x + 242 + x2 = 0 + 242

Reorder the terms:
-242 + 242 + 4x + x2 = 0 + 242

Combine like terms: -242 + 242 = 0
0 + 4x + x2 = 0 + 242
4x + x2 = 0 + 242

Combine like terms: 0 + 242 = 242
4x + x2 = 242

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 = 242 + 4

Reorder the terms:
4 + 4x + x2 = 242 + 4

Combine like terms: 242 + 4 = 246
4 + 4x + x2 = 246

Factor a perfect square on the left side:
(x + 2)(x + 2) = 246

Calculate the square root of the right side: 15.684387141

Break this problem into two subproblems by setting 
(x + 2) equal to 15.684387141 and -15.684387141.

Subproblem 1

x + 2 = 15.684387141 Simplifying x + 2 = 15.684387141 Reorder the terms: 2 + x = 15.684387141 Solving 2 + x = 15.684387141 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 = 15.684387141 + -2 Combine like terms: 2 + -2 = 0 0 + x = 15.684387141 + -2 x = 15.684387141 + -2 Combine like terms: 15.684387141 + -2 = 13.684387141 x = 13.684387141 Simplifying x = 13.684387141

Subproblem 2

x + 2 = -15.684387141 Simplifying x + 2 = -15.684387141 Reorder the terms: 2 + x = -15.684387141 Solving 2 + x = -15.684387141 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 = -15.684387141 + -2 Combine like terms: 2 + -2 = 0 0 + x = -15.684387141 + -2 x = -15.684387141 + -2 Combine like terms: -15.684387141 + -2 = -17.684387141 x = -17.684387141 Simplifying x = -17.684387141

Solution

The solution to the problem is based on the solutions from the subproblems. x = {13.684387141, -17.684387141}

See similar equations:

| f(x+7)=6x-3 | | m^(4x-9)/m^(6)=m^(-16) | | y=e^3Inx | | -0.5(0.3i-0.6)=-1.5 | | x^2+3x=972 | | 4[2k+3]-2=6 | | 2x+3(1-3x)= | | 9/2x=4/x-1/14 | | x^2+3x=927 | | sqrt(5x)=sqrt(7x+9)-3 | | 6(-5x+12)=54-28x | | 14.7= | | 2w^2-8w-179=0 | | 7(x-5)+5x=4(3x+5)-9 | | x^2-8n+20=5 | | (X-4)2+5=-20 | | 6x-17=x-3 | | 4y^2-63y-81=0 | | N+0.15=1.25 | | -3x^3+x^2+7x-5=0 | | 3+6*2+8-2+9= | | C^4-2x^3+3=0 | | -3+14=4x-7 | | 0.33[2c-5]+3=7 | | 0=-picosx | | -5.2(4x+6)-1.7(3x-5)= | | -7/3=-3/7y | | -x-14=29 | | w(2w-8)=179 | | 100*q=3.1975 | | 6x^2+10x-9x=15 | | 13y-17y=12-36 |

Equations solver categories