x*(x-4)=221

Simple and best practice solution for x*(x-4)=221 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*(x-4)=221 equation:


Simplifying
x(x + -4) = 221

Reorder the terms:
x(-4 + x) = 221
(-4 * x + x * x) = 221
(-4x + x2) = 221

Solving
-4x + x2 = 221

Solving for variable 'x'.

Reorder the terms:
-221 + -4x + x2 = 221 + -221

Combine like terms: 221 + -221 = 0
-221 + -4x + x2 = 0

Factor a trinomial.
(-13 + -1x)(17 + -1x) = 0

Subproblem 1

Set the factor '(-13 + -1x)' equal to zero and attempt to solve: Simplifying -13 + -1x = 0 Solving -13 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + -1x = 0 + 13 Combine like terms: -13 + 13 = 0 0 + -1x = 0 + 13 -1x = 0 + 13 Combine like terms: 0 + 13 = 13 -1x = 13 Divide each side by '-1'. x = -13 Simplifying x = -13

Subproblem 2

Set the factor '(17 + -1x)' equal to zero and attempt to solve: Simplifying 17 + -1x = 0 Solving 17 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-17' to each side of the equation. 17 + -17 + -1x = 0 + -17 Combine like terms: 17 + -17 = 0 0 + -1x = 0 + -17 -1x = 0 + -17 Combine like terms: 0 + -17 = -17 -1x = -17 Divide each side by '-1'. x = 17 Simplifying x = 17

Solution

x = {-13, 17}

See similar equations:

| y=-20(6)-120 | | 8x+4z=7+7y | | 5(x^2-18x-54)= | | (3x+2)(x+1)=24 | | x-0.7=9.64 | | 3/2x-1/4=x/4-1/8 | | 6x-57=-2x+79 | | Y^2+7=16 | | 9cos(150)= | | 2x^2(x^2-13x+36)=0 | | (2n-5)(n+1)=0 | | -12+l=-38 | | 3(y-4)-6=-4(-6v+6)-6v | | 2v^2=5v | | -3k+2k+5k+9=-7 | | 2/5m=7/10m=2/7/1/4 | | 2x+4/4=x-8/3 | | z^(2/3)-2z^(1/3)=15 | | fx=5x-1 | | -2y+3w=10 | | 24/y=8/3 | | 4x+5+2x+8= | | 4x-2y-3x+5y= | | 7x^2+20x-18=0 | | 2x+6(-2.5x+5)=-4 | | (-2)x(-25)= | | x+x*x=16 | | -46=3x+7y | | x/9-5/6=4x/9 | | (X-17.7)+19.6=28.8 | | 3-2a=15 | | 7(10x+8)=-364 |

Equations solver categories