x^2+4x=28+x

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


Simplifying
x2 + 4x = 28 + x

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

Solving
4x + x2 = 28 + x

Solving for variable 'x'.

Reorder the terms:
-28 + 4x + -1x + x2 = 28 + x + -28 + -1x

Combine like terms: 4x + -1x = 3x
-28 + 3x + x2 = 28 + x + -28 + -1x

Reorder the terms:
-28 + 3x + x2 = 28 + -28 + x + -1x

Combine like terms: 28 + -28 = 0
-28 + 3x + x2 = 0 + x + -1x
-28 + 3x + x2 = x + -1x

Combine like terms: x + -1x = 0
-28 + 3x + x2 = 0

Factor a trinomial.
(-7 + -1x)(4 + -1x) = 0

Subproblem 1

Set the factor '(-7 + -1x)' equal to zero and attempt to solve: Simplifying -7 + -1x = 0 Solving -7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -1x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1x = 0 + 7 -1x = 0 + 7 Combine like terms: 0 + 7 = 7 -1x = 7 Divide each side by '-1'. x = -7 Simplifying x = -7

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 = {-7, 4}

See similar equations:

| X+6=-7x+2/3 | | 0=5x+7+2x-16 | | 5(9g+9)= | | 2(x-6)-4x= | | 175/5-1=t | | 17.5+4.5=1.75-.75y | | 2x+(x-1)=23 | | 3/5x15=x | | 48(4-2x)=12 | | 3x+36-2x=44 | | 8/x+3-7/x-2 | | d^2-11d+18=0 | | 2(3x+1)(2x-9)=0 | | X+6=-7+2/3 | | y=4sin(3pix+4) | | 2x-9y=35 | | 7x^2-13x-12=0 | | 1/5/175-1 | | 2/3y=9/4 | | 86p+42(1-p)=36p+106(1-p) | | 2+n/3=-1 | | x+17=-2X-7 | | 1x+10y=129000 | | 2x-(14-x)=1 | | x^2-15x=-5 | | 2x-7/5+x+1/3=7 | | x^2+9=44-4x | | -x*0=0 | | 2.5/15 | | 4x^2+8x+82=0 | | x+1/3+5=x+6/9 | | 2t-1=3t(t+7) |

Equations solver categories