-4=x^2+4x

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


Simplifying
-4 = x2 + 4x

Reorder the terms:
-4 = 4x + x2

Solving
-4 = 4x + x2

Solving for variable 'x'.

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

Combine like terms: 4x + -4x = 0
-4 + -4x + -1x2 = 0 + x2 + -1x2
-4 + -4x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-4 + -4x + -1x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(4 + 4x + x2) = 0

Factor a trinomial.
-1((2 + x)(2 + x)) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(2 + x)' equal to zero and attempt to solve: Simplifying 2 + x = 0 Solving 2 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0 + -2 x = 0 + -2 Combine like terms: 0 + -2 = -2 x = -2 Simplifying x = -2

Subproblem 2

Set the factor '(2 + x)' equal to zero and attempt to solve: Simplifying 2 + x = 0 Solving 2 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0 + -2 x = 0 + -2 Combine like terms: 0 + -2 = -2 x = -2 Simplifying x = -2

Solution

x = {-2, -2}

See similar equations:

| -x+25=2x+10 | | xx-6x=0 | | 14y+17x-19y+12x= | | 4b+3+2b=12b-6 | | 4x+8(5)=8 | | 8x-6=5x+9 | | X+Y=56 | | Y^2-4X=0 | | 1/4x=866 | | 1/3x=1/4x | | .821=x/(2009) | | 2p+3p=50+56 | | (7v+7)+(8-5v)= | | .821=x/(62.4*32.2) | | 4x^2+8x+20=-92 | | y=7x^2+2x-3 | | 4x-55=95+10x | | 15a/3 | | 3-5x=3x+11 | | -x-58=68-7x | | 8x+7=9x+9 | | F(x)=log(x-5) | | -77+4x=147+12x | | -38+3x=8x+87 | | 6y=4y+12 | | b-28=20-b | | -25-2x=32-5x | | -5x-5(4+7x)=300 | | 16x^2-76x-20=0 | | 287=-7(1+7m) | | 102-5x=2x+19 | | 8x-101=67+2x |

Equations solver categories