(21-2x)(39-2x)x=

Simple and best practice solution for (21-2x)(39-2x)x= 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 (21-2x)(39-2x)x= equation: 


Simplifying
(21 + -2x)(39 + -2x) * x = 0

Reorder the terms for easier multiplication:
x(21 + -2x)(39 + -2x) = 0

Multiply (21 + -2x) * (39 + -2x)
x(21(39 + -2x) + -2x * (39 + -2x)) = 0
x((39 * 21 + -2x * 21) + -2x * (39 + -2x)) = 0
x((819 + -42x) + -2x * (39 + -2x)) = 0
x(819 + -42x + (39 * -2x + -2x * -2x)) = 0
x(819 + -42x + (-78x + 4x2)) = 0

Combine like terms: -42x + -78x = -120x
x(819 + -120x + 4x2) = 0
(819 * x + -120x * x + 4x2 * x) = 0
(819x + -120x2 + 4x3) = 0

Solving
819x + -120x2 + 4x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x'.
x(819 + -120x + 4x2) = 0

Factor a trinomial.
x((21 + -2x)(39 + -2x)) = 0


Subproblem 1
Set the factor 'x' equal to zero and attempt to solve:

Simplifying
x = 0

Solving
x = 0

Move all terms containing x to the left, all other terms to the right.

Simplifying
x = 0

Subproblem 2
Set the factor '(21 + -2x)' equal to zero and attempt to solve:

Simplifying
21 + -2x = 0

Solving
21 + -2x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-21' to each side of the equation.
21 + -21 + -2x = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -2x = 0 + -21
-2x = 0 + -21

Combine like terms: 0 + -21 = -21
-2x = -21

Divide each side by '-2'.
x = 10.5

Simplifying
x = 10.5

Subproblem 3
Set the factor '(39 + -2x)' equal to zero and attempt to solve:

Simplifying
39 + -2x = 0

Solving
39 + -2x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-39' to each side of the equation.
39 + -39 + -2x = 0 + -39

Combine like terms: 39 + -39 = 0
0 + -2x = 0 + -39
-2x = 0 + -39

Combine like terms: 0 + -39 = -39
-2x = -39

Divide each side by '-2'.
x = 19.5

Simplifying
x = 19.5
Solution
x = {0, 10.5, 19.5}

See similar equations:

| 20x^2-11x=3 | | -12x^2-240x+819= | | 6p-8n=12 | | -12x^2-240x+819=0 | | 8x-(3x+2)=9x-26 | | y=5+-8x+-2x^2 | | 4000-160x=3000-120x | | -6x+9y=11 | | 5-2(6-5x)=-87 | | 3000-160x=1500 | | 4000-160x=1500 | | 21x^3-12x^2+35x-20=0 | | X^2+12xy+35y^2=0 | | L=-p+2w | | y=-2x^2-8x+5 | | (-4y-9z)(-5)= | | (r^2-8tw)+(4wr-2tr)= | | y=2x-9+7 | | 3a^2-33a+72= | | -7(6p-5)=287 | | 2x+333= | | y=-2x-9+7 | | 0.3x^2+6x-2=0 | | (x-2)*(x-2)+(x-9)*(x-9)=(x-11)*(x-11) | | 3*(2x-7)-5(x-8)=-4(x+2) | | 3*(2x-7)-5(x-8)=-4(x-2) | | 90=x+(x+8) | | 6y-54=0 | | 3(2x-7)-5(x-8)=-4(x-2) | | P^4-1=0 | | 7x-12=x+2+2x-3x | | 6(x+6)+2x=92 |

Equations solver categories