(20-x)*x=64

Simple and best practice solution for (20-x)*x=64 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 (20-x)*x=64 equation:


Simplifying
(20 + -1x) * x = 64

Reorder the terms for easier multiplication:
x(20 + -1x) = 64
(20 * x + -1x * x) = 64
(20x + -1x2) = 64

Solving
20x + -1x2 = 64

Solving for variable 'x'.

Reorder the terms:
-64 + 20x + -1x2 = 64 + -64

Combine like terms: 64 + -64 = 0
-64 + 20x + -1x2 = 0

Factor a trinomial.
(-16 + x)(4 + -1x) = 0

Subproblem 1

Set the factor '(-16 + x)' equal to zero and attempt to solve: Simplifying -16 + x = 0 Solving -16 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + x = 0 + 16 Combine like terms: -16 + 16 = 0 0 + x = 0 + 16 x = 0 + 16 Combine like terms: 0 + 16 = 16 x = 16 Simplifying x = 16

Subproblem 2

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Solution

x = {16, 4}

See similar equations:

| 44r+36s=2k | | 6-x+x+2+2x-2+2x+1=19 | | 4y(y+2)(y+8)=0 | | (4u+1)(5+u)=0 | | -2(t-4)=12 | | ln(2x+6)-lnx=3 | | -12x-8=64 | | 73x=-8 | | 73x=8 | | (5x^4+3x^3+7)-(2x^3-9+x)= | | 3x^2-26x+18=2 | | x^3+3x^2-24x-10=0 | | x^3-13x-12x^3= | | -19+4m+10=37-4m(-6) | | 2l+2w-40=0 | | (y^2+12y+20)(y^2-16)+455=0 | | 4x^2+0-16=0 | | 8x^2+30x+18=0 | | 8x^2+14x-30=0 | | 3x^2-15+6=0 | | h=32+16t+16t^2 | | h=16t^2+16t+32 | | (5x)2(6x^3-2x^2)= | | 10x^3+36x^2-16x=0 | | 7x^2+34-5=0 | | x+x+2x=11 | | 5X+Y-2Z=23 | | 4n^2+13n-12=0 | | X-2Y-Z=2 | | 6x-7=4x+5 | | 3x+2y+6z=-5 | | -3x^2+15x-12=0 |

Equations solver categories