x^2+4x+4x=25

Simple and best practice solution for x^2+4x+4x=25 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+4x=25 equation:


Simplifying
x2 + 4x + 4x = 25

Reorder the terms:
4x + 4x + x2 = 25

Combine like terms: 4x + 4x = 8x
8x + x2 = 25

Solving
8x + x2 = 25

Solving for variable 'x'.

Reorder the terms:
-25 + 8x + x2 = 25 + -25

Combine like terms: 25 + -25 = 0
-25 + 8x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '25' to each side of the equation.
-25 + 8x + 25 + x2 = 0 + 25

Reorder the terms:
-25 + 25 + 8x + x2 = 0 + 25

Combine like terms: -25 + 25 = 0
0 + 8x + x2 = 0 + 25
8x + x2 = 0 + 25

Combine like terms: 0 + 25 = 25
8x + x2 = 25

The x term is 8x.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8x + 16 + x2 = 25 + 16

Reorder the terms:
16 + 8x + x2 = 25 + 16

Combine like terms: 25 + 16 = 41
16 + 8x + x2 = 41

Factor a perfect square on the left side:
(x + 4)(x + 4) = 41

Calculate the square root of the right side: 6.403124237

Break this problem into two subproblems by setting 
(x + 4) equal to 6.403124237 and -6.403124237.

Subproblem 1

x + 4 = 6.403124237 Simplifying x + 4 = 6.403124237 Reorder the terms: 4 + x = 6.403124237 Solving 4 + x = 6.403124237 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 6.403124237 + -4 Combine like terms: 4 + -4 = 0 0 + x = 6.403124237 + -4 x = 6.403124237 + -4 Combine like terms: 6.403124237 + -4 = 2.403124237 x = 2.403124237 Simplifying x = 2.403124237

Subproblem 2

x + 4 = -6.403124237 Simplifying x + 4 = -6.403124237 Reorder the terms: 4 + x = -6.403124237 Solving 4 + x = -6.403124237 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = -6.403124237 + -4 Combine like terms: 4 + -4 = 0 0 + x = -6.403124237 + -4 x = -6.403124237 + -4 Combine like terms: -6.403124237 + -4 = -10.403124237 x = -10.403124237 Simplifying x = -10.403124237

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.403124237, -10.403124237}

See similar equations:

| 2x+3+2x+3=180 | | 4+1.5n=-7 | | 6X-3y+2=0 | | 60-30=30+0.10x-30 | | -5=-0.5x-2 | | 40+15m=205 | | 7x-22.4=8.4 | | 5(8+x)9= | | 2x+21.50=50.00 | | -12y-1=-61 | | 9*8=u-3 | | 4+5+7=4+11 | | 12-5a=3a-20 | | 12.58*4= | | 5X=4+2 | | 8x+7=12x+4 | | 3x+4x-3+x+1= | | -12+20m=588 | | 3+a=11 | | 7-5sinX=2cos^2X | | -12+20m=488 | | 3(x+2.5)=6.6 | | 18(2x^2-9x-18)=0 | | -5(4x-1)=-20x+5 | | 6(x-2)=-2x+44 | | m/9-0.2=0.5 | | -12y+3=-57 | | t-4=3*10 | | 3x+4x-15=90whatisx | | 2x+4y-16=0 | | 2(x+2)=2(x+15) | | (-6x)-(42)=0 |

Equations solver categories