x(x-2)-16=3(2x-5)+11

Simple and best practice solution for x(x-2)-16=3(2x-5)+11 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-2)-16=3(2x-5)+11 equation:


Simplifying
x(x + -2) + -16 = 3(2x + -5) + 11

Reorder the terms:
x(-2 + x) + -16 = 3(2x + -5) + 11
(-2 * x + x * x) + -16 = 3(2x + -5) + 11
(-2x + x2) + -16 = 3(2x + -5) + 11

Reorder the terms:
-16 + -2x + x2 = 3(2x + -5) + 11

Reorder the terms:
-16 + -2x + x2 = 3(-5 + 2x) + 11
-16 + -2x + x2 = (-5 * 3 + 2x * 3) + 11
-16 + -2x + x2 = (-15 + 6x) + 11

Reorder the terms:
-16 + -2x + x2 = -15 + 11 + 6x

Combine like terms: -15 + 11 = -4
-16 + -2x + x2 = -4 + 6x

Solving
-16 + -2x + x2 = -4 + 6x

Solving for variable 'x'.

Reorder the terms:
-16 + 4 + -2x + -6x + x2 = -4 + 6x + 4 + -6x

Combine like terms: -16 + 4 = -12
-12 + -2x + -6x + x2 = -4 + 6x + 4 + -6x

Combine like terms: -2x + -6x = -8x
-12 + -8x + x2 = -4 + 6x + 4 + -6x

Reorder the terms:
-12 + -8x + x2 = -4 + 4 + 6x + -6x

Combine like terms: -4 + 4 = 0
-12 + -8x + x2 = 0 + 6x + -6x
-12 + -8x + x2 = 6x + -6x

Combine like terms: 6x + -6x = 0
-12 + -8x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '12' to each side of the equation.
-12 + -8x + 12 + x2 = 0 + 12

Reorder the terms:
-12 + 12 + -8x + x2 = 0 + 12

Combine like terms: -12 + 12 = 0
0 + -8x + x2 = 0 + 12
-8x + x2 = 0 + 12

Combine like terms: 0 + 12 = 12
-8x + x2 = 12

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 = 12 + 16

Reorder the terms:
16 + -8x + x2 = 12 + 16

Combine like terms: 12 + 16 = 28
16 + -8x + x2 = 28

Factor a perfect square on the left side:
(x + -4)(x + -4) = 28

Calculate the square root of the right side: 5.291502622

Break this problem into two subproblems by setting 
(x + -4) equal to 5.291502622 and -5.291502622.

Subproblem 1

x + -4 = 5.291502622 Simplifying x + -4 = 5.291502622 Reorder the terms: -4 + x = 5.291502622 Solving -4 + x = 5.291502622 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 = 5.291502622 + 4 Combine like terms: -4 + 4 = 0 0 + x = 5.291502622 + 4 x = 5.291502622 + 4 Combine like terms: 5.291502622 + 4 = 9.291502622 x = 9.291502622 Simplifying x = 9.291502622

Subproblem 2

x + -4 = -5.291502622 Simplifying x + -4 = -5.291502622 Reorder the terms: -4 + x = -5.291502622 Solving -4 + x = -5.291502622 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 = -5.291502622 + 4 Combine like terms: -4 + 4 = 0 0 + x = -5.291502622 + 4 x = -5.291502622 + 4 Combine like terms: -5.291502622 + 4 = -1.291502622 x = -1.291502622 Simplifying x = -1.291502622

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.291502622, -1.291502622}

See similar equations:

| t=-16t^2+2304 | | 10x^2+7x+1=0 | | 83.851=x+1.589x | | 53+3y-20=12y-9-3y | | n-37=-19 | | -16x^2+8x+24=0 | | 6x^3=54x | | x^7+x^6+x^5=0 | | -1+16=4b-8-3b | | v+(v-32.6)+(v+25.1)=198.3 | | 6x^2+2=7x | | 42=x+7x | | 7y=1y-42 | | -3x+1.3=-4x+0.7 | | 6r^3+18r^2=108r | | 6x+2=7x | | 4+5x=24 | | 4x+2.3=5x+1.7 | | 4x^2-2x-90=0 | | 14b=16b+32 | | 1+8x+2-4x=4(7x+9)-7(x+12) | | 3x+x-1=0 | | -5(-2z)=80 | | x+x+1=123 | | 4c=c^2+4 | | 5x+0.4=4x | | 6-60=6a | | 3x+1.0=x | | (5-3s)(3s+5)= | | 17r=0 | | 4(4+c)=3(c-4) | | 5x^2+2=-7x |

Equations solver categories