x^2-4x-28=4

Simple and best practice solution for x^2-4x-28=4 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^2-4x-28=4 equation:


Simplifying
x2 + -4x + -28 = 4

Reorder the terms:
-28 + -4x + x2 = 4

Solving
-28 + -4x + x2 = 4

Solving for variable 'x'.

Reorder the terms:
-28 + -4 + -4x + x2 = 4 + -4

Combine like terms: -28 + -4 = -32
-32 + -4x + x2 = 4 + -4

Combine like terms: 4 + -4 = 0
-32 + -4x + x2 = 0

Factor a trinomial.
(-4 + -1x)(8 + -1x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(8 + -1x)' equal to zero and attempt to solve: Simplifying 8 + -1x = 0 Solving 8 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1x = 0 + -8 -1x = 0 + -8 Combine like terms: 0 + -8 = -8 -1x = -8 Divide each side by '-1'. x = 8 Simplifying x = 8

Solution

x = {-4, 8}

See similar equations:

| (3x-2y)=18 | | Y=2x^2-8x+12 | | X+y=23-y | | 2lw+2w=18 | | 6x-16=3x+32 | | 2(3x^2-4)=3(x^2-3) | | 4m=2m+6 | | 3n-5+2n=20 | | -8*2-5= | | 3(x^2-4)=2x^2+3 | | 10-x=2x+37 | | 12x=2y-10 | | 6+24-3= | | 2m^2+35=0 | | 180-(15x+4y)=72 | | -3+2y=-5x | | -6(3z+1)-8+15z=31 | | -6-6b=-4b | | 2x-5(-2.4)=6 | | -8b-4b=144 | | 6-24+3= | | 7x+42-11x=30 | | 30-8x=6+8(5-6x) | | 16b^3-25b=0 | | 3=6p-8-5p | | 72=(15x+4y) | | 30-8x=6+8(5+6x) | | 12x+36=12x+24 | | -3v=-6-2v | | -4d+18=-22 | | (X-3)(x+15)=0 | | 13-24+17+14= |

Equations solver categories