3x(x+16)=32

Simple and best practice solution for 3x(x+16)=32 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 3x(x+16)=32 equation:


Simplifying
3x(x + 16) = 32

Reorder the terms:
3x(16 + x) = 32
(16 * 3x + x * 3x) = 32
(48x + 3x2) = 32

Solving
48x + 3x2 = 32

Solving for variable 'x'.

Reorder the terms:
-32 + 48x + 3x2 = 32 + -32

Combine like terms: 32 + -32 = 0
-32 + 48x + 3x2 = 0

Begin completing the square.  Divide all terms by
3 the coefficient of the squared term: 

Divide each side by '3'.
-10.66666667 + 16x + x2 = 0

Move the constant term to the right:

Add '10.66666667' to each side of the equation.
-10.66666667 + 16x + 10.66666667 + x2 = 0 + 10.66666667

Reorder the terms:
-10.66666667 + 10.66666667 + 16x + x2 = 0 + 10.66666667

Combine like terms: -10.66666667 + 10.66666667 = 0.00000000
0.00000000 + 16x + x2 = 0 + 10.66666667
16x + x2 = 0 + 10.66666667

Combine like terms: 0 + 10.66666667 = 10.66666667
16x + x2 = 10.66666667

The x term is 16x.  Take half its coefficient (8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
16x + 64 + x2 = 10.66666667 + 64

Reorder the terms:
64 + 16x + x2 = 10.66666667 + 64

Combine like terms: 10.66666667 + 64 = 74.66666667
64 + 16x + x2 = 74.66666667

Factor a perfect square on the left side:
(x + 8)(x + 8) = 74.66666667

Calculate the square root of the right side: 8.640987598

Break this problem into two subproblems by setting 
(x + 8) equal to 8.640987598 and -8.640987598.

Subproblem 1

x + 8 = 8.640987598 Simplifying x + 8 = 8.640987598 Reorder the terms: 8 + x = 8.640987598 Solving 8 + x = 8.640987598 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 8.640987598 + -8 Combine like terms: 8 + -8 = 0 0 + x = 8.640987598 + -8 x = 8.640987598 + -8 Combine like terms: 8.640987598 + -8 = 0.640987598 x = 0.640987598 Simplifying x = 0.640987598

Subproblem 2

x + 8 = -8.640987598 Simplifying x + 8 = -8.640987598 Reorder the terms: 8 + x = -8.640987598 Solving 8 + x = -8.640987598 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = -8.640987598 + -8 Combine like terms: 8 + -8 = 0 0 + x = -8.640987598 + -8 x = -8.640987598 + -8 Combine like terms: -8.640987598 + -8 = -16.640987598 x = -16.640987598 Simplifying x = -16.640987598

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.640987598, -16.640987598}

See similar equations:

| 625=100m+75h | | 3x-4y=73 | | 5/9=a/1-(-4/5) | | 40-5y/20 | | p=-60q^2+7200 | | x-8+x=182 | | -31.116+6.9m=0.3m-7.9(-6.9m+0.3) | | (5x^2y^-5/4y^-2)^5 | | x-10=3/5[9-10x] | | -5(-2x+7)+3=58 | | -5(-4x+4)+2=162 | | 3x+5+2x=1+4x | | 2/9x-4/1=2/3 | | Y=1/2x^2G6 | | Ax-9b=7c | | -(5x-9)+5x= | | (2x-20)=94 | | -(8x-8)+8x= | | 3(x+1)(x-4)(x+5)=0 | | 0=3(x+1)(x-4)(x+5) | | 68-2x=84-3x | | 4secx=16sinx | | -8z-8z=-4z+6-9z | | 7u+4=6u | | 2(3r+8)-3(r-9)= | | 9x^2+4y^2+6x=35 | | (3x-25)=(2x+33) | | x+y+18=40x-2=2y | | 3(3+3x)=8(x-3) | | (3x/5)-1=8 | | 69-2x=78-3x | | (X-8)+x=128 |

Equations solver categories