x(x-4)-3(1+2x)=

Simple and best practice solution for x(x-4)-3(1+2x)= 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(x-4)-3(1+2x)= equation:


Simplifying
x(x + -4) + -3(1 + 2x) = 0

Reorder the terms:
x(-4 + x) + -3(1 + 2x) = 0
(-4 * x + x * x) + -3(1 + 2x) = 0
(-4x + x2) + -3(1 + 2x) = 0
-4x + x2 + (1 * -3 + 2x * -3) = 0
-4x + x2 + (-3 + -6x) = 0

Reorder the terms:
-3 + -4x + -6x + x2 = 0

Combine like terms: -4x + -6x = -10x
-3 + -10x + x2 = 0

Solving
-3 + -10x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + -10x + 3 + x2 = 0 + 3

Reorder the terms:
-3 + 3 + -10x + x2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -10x + x2 = 0 + 3
-10x + x2 = 0 + 3

Combine like terms: 0 + 3 = 3
-10x + x2 = 3

The x term is -10x.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10x + 25 + x2 = 3 + 25

Reorder the terms:
25 + -10x + x2 = 3 + 25

Combine like terms: 3 + 25 = 28
25 + -10x + x2 = 28

Factor a perfect square on the left side:
(x + -5)(x + -5) = 28

Calculate the square root of the right side: 5.291502622

Break this problem into two subproblems by setting 
(x + -5) equal to 5.291502622 and -5.291502622.

Subproblem 1

x + -5 = 5.291502622 Simplifying x + -5 = 5.291502622 Reorder the terms: -5 + x = 5.291502622 Solving -5 + x = 5.291502622 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 5.291502622 + 5 Combine like terms: -5 + 5 = 0 0 + x = 5.291502622 + 5 x = 5.291502622 + 5 Combine like terms: 5.291502622 + 5 = 10.291502622 x = 10.291502622 Simplifying x = 10.291502622

Subproblem 2

x + -5 = -5.291502622 Simplifying x + -5 = -5.291502622 Reorder the terms: -5 + x = -5.291502622 Solving -5 + x = -5.291502622 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = -5.291502622 + 5 Combine like terms: -5 + 5 = 0 0 + x = -5.291502622 + 5 x = -5.291502622 + 5 Combine like terms: -5.291502622 + 5 = -0.291502622 x = -0.291502622 Simplifying x = -0.291502622

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.291502622, -0.291502622}

See similar equations:

| x-(-18)=-2 | | 5x^3-15x^2-20x=0 | | 10-(-343)= | | 5x-(2x+1)=3x-1 | | -9x^2+15x-4=0 | | 4x+5-3x=8+2x-5 | | 30y+1.5=12y+3 | | 54.6=4.9t^2 | | (-1)+x=21 | | 4(x+1)+2(x-1)= | | 2(-2+7x)=2x+8 | | x-(-19)=25 | | (2x-3)(x-1)=x(4x+3)+10 | | 4-x=169 | | x-(-7)=25 | | (-5)-x=11 | | -6w-11=3w+16 | | (x^2-2x+1)+3(x-1)=0 | | -(8n-8)=-37+7n | | x-(-22)=9 | | x=a^3b+ab^3 | | n+n+2+n+4=-138 | | 4b-5b= | | [4x-12]+8=0 | | 55-7x=20+19x | | -2x+3=2x-5 | | 6-10x=98-38x | | 16u+6u=3+16 | | 94-4x=4x+7 | | x+8=-5x-4 | | 8a^2+10a-3=0 | | 13-7x=161-35x |

Equations solver categories