(x-4)(x^2-x-20)=0

Simple and best practice solution for (x-4)(x^2-x-20)=0 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-4)(x^2-x-20)=0 equation:


Simplifying
(x + -4)(x2 + -1x + -20) = 0

Reorder the terms:
(-4 + x)(x2 + -1x + -20) = 0

Reorder the terms:
(-4 + x)(-20 + -1x + x2) = 0

Multiply (-4 + x) * (-20 + -1x + x2)
(-4(-20 + -1x + x2) + x(-20 + -1x + x2)) = 0
((-20 * -4 + -1x * -4 + x2 * -4) + x(-20 + -1x + x2)) = 0
((80 + 4x + -4x2) + x(-20 + -1x + x2)) = 0
(80 + 4x + -4x2 + (-20 * x + -1x * x + x2 * x)) = 0
(80 + 4x + -4x2 + (-20x + -1x2 + x3)) = 0

Reorder the terms:
(80 + 4x + -20x + -4x2 + -1x2 + x3) = 0

Combine like terms: 4x + -20x = -16x
(80 + -16x + -4x2 + -1x2 + x3) = 0

Combine like terms: -4x2 + -1x2 = -5x2
(80 + -16x + -5x2 + x3) = 0

Solving
80 + -16x + -5x2 + x3 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

See similar equations:

| 60x=75x-11 | | 60x+75x=11 | | (x-4)=(3x+2) | | 6x^2-6x-18=0 | | 4.9x^2+20x+1=5 | | 80x+90x=680 | | 80x+90x=680 | | 0=5t^2+2 | | x+.05=1 | | 2.5x+4.5(462-x)=1441 | | c=jp | | 11-3m=5 | | 11-3m=6 | | 11-3m=12 | | 3x+2y+5y-4y-8x= | | 4(x+4)+6=7x-3(x-5) | | .25x+.5(63-x)=21.25 | | 13-(3+6y-2(y+5))=-5(2y-3)-(8(y-1)-11y+12) | | -2(-4x+-2x)=132 | | 11-3m=10 | | 8-y-2=5 | | .25x+.5x=21.25 | | (6x+3x+5x)= | | 8-y-2=7 | | 8-y-2=16 | | -2(-4x+-2x)=110 | | 8-y-2=9 | | 2x-10x-100=0 | | (x^3+7x^2-9x-63)=0 | | x^2+k+8=0 | | 8-y-2= | | x^3+7x^2(-9x)-63=0 |

Equations solver categories