20(x)(x)-9x=20

Simple and best practice solution for 20(x)(x)-9x=20 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)-9x=20 equation:


Simplifying
20(x)(x) + -9x = 20

Multiply x * x
20x2 + -9x = 20

Reorder the terms:
-9x + 20x2 = 20

Solving
-9x + 20x2 = 20

Solving for variable 'x'.

Reorder the terms:
-20 + -9x + 20x2 = 20 + -20

Combine like terms: 20 + -20 = 0
-20 + -9x + 20x2 = 0

Factor a trinomial.
(-4 + -5x)(5 + -4x) = 0

Subproblem 1

Set the factor '(-4 + -5x)' equal to zero and attempt to solve: Simplifying -4 + -5x = 0 Solving -4 + -5x = 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 + -5x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -5x = 0 + 4 -5x = 0 + 4 Combine like terms: 0 + 4 = 4 -5x = 4 Divide each side by '-5'. x = -0.8 Simplifying x = -0.8

Subproblem 2

Set the factor '(5 + -4x)' equal to zero and attempt to solve: Simplifying 5 + -4x = 0 Solving 5 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -4x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -4x = 0 + -5 -4x = 0 + -5 Combine like terms: 0 + -5 = -5 -4x = -5 Divide each side by '-4'. x = 1.25 Simplifying x = 1.25

Solution

x = {-0.8, 1.25}

See similar equations:

| 16x^4-25x^2+9=0 | | 12x^2-19x+11=6 | | (4x)(x-5)=0 | | 15x^2+100x+125=0 | | 42(x)(x)-13x=42 | | v^2+8v+11=-4 | | 2x-6+4=x-4x+2 | | 5x^2-24x-36=0 | | v^2-14v-59=-4 | | (9x+2)2(x)(x)(-5x-3)=0 | | 3n^2-n-4=2 | | (2x-5)(5x+2)=0 | | .40x-8=20+.75x | | x^2+4x-71=0 | | z^2+15z+56=0 | | (9x+2)(2(x)(x)-5x-3)=0 | | 3x+20=-4 | | -x^2+8x+37=0 | | 4(x)(x)-25=0 | | 7x^2+0x-3=0 | | 4(t-2)+4t=(2t+4)-10 | | x^2+20x-10=0 | | 7x-x+2x=48 | | -5y-10=8y+16 | | 3x^2-18x-20=0 | | 8(x-8)=3 | | x^3y^3-27= | | b^2-8b+4=0 | | -6x-12=7y | | 16(x)(x)(x)-x=0 | | -7y=-6x-12 | | 7x-11y=13 |

Equations solver categories