x*x+2x-20=-4x-4

Simple and best practice solution for x*x+2x-20=-4x-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*x+2x-20=-4x-4 equation: 


Simplifying
x * x + 2x + -20 = -4x + -4

Multiply x * x
x2 + 2x + -20 = -4x + -4

Reorder the terms:
-20 + 2x + x2 = -4x + -4

Reorder the terms:
-20 + 2x + x2 = -4 + -4x

Solving
-20 + 2x + x2 = -4 + -4x

Solving for variable 'x'.

Reorder the terms:
-20 + 4 + 2x + 4x + x2 = -4 + -4x + 4 + 4x

Combine like terms: -20 + 4 = -16
-16 + 2x + 4x + x2 = -4 + -4x + 4 + 4x

Combine like terms: 2x + 4x = 6x
-16 + 6x + x2 = -4 + -4x + 4 + 4x

Reorder the terms:
-16 + 6x + x2 = -4 + 4 + -4x + 4x

Combine like terms: -4 + 4 = 0
-16 + 6x + x2 = 0 + -4x + 4x
-16 + 6x + x2 = -4x + 4x

Combine like terms: -4x + 4x = 0
-16 + 6x + x2 = 0

Factor a trinomial.
(-8 + -1x)(2 + -1x) = 0


Subproblem 1
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

Subproblem 2
Set the factor '(2 + -1x)' equal to zero and attempt to solve:

Simplifying
2 + -1x = 0

Solving
2 + -1x = 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 + -1x = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -1x = 0 + -2
-1x = 0 + -2

Combine like terms: 0 + -2 = -2
-1x = -2

Divide each side by '-1'.
x = 2

Simplifying
x = 2
Solution
x = {-8, 2}

See similar equations:

| 18u-7u-7u=20 | | (2-m)-3=33 | | 8k^2-17k-15=0 | | 2u-u=16 | | 2y+4.4x=5 | | (x^2-y+z)(y^2-z+y)(x+y-z)= | | 11g-10g=12 | | x*x+5x+7=3 | | 12-62=10-5z | | 5e+1=3e+5 | | 11y-8y=24 | | 19y-18y=20 | | 42=2*x-1 | | (4n-5)*10=35 | | 5x-27+7x-26+10x-23=180 | | 6=3x/100 | | 0.15x+3.45=8 | | 5x+38=9(x+6) | | (3exp(3x)-2exp(x))/(3exp(3x)-exp(x)) | | 5(x+4)=3x+13 | | 6x+1=2+10 | | 4z+6=10 | | 3x+6=12x-10 | | b-11=87 | | x/7-4=-17 | | 66=1.2x | | 4(x+2)=6x+8-2x | | 3y^2-3x=(3x*2y)-18 | | 5x+4-x+29= | | 2y^2+14y=120 | | 285=15c | | 6x-1=4-7 |

Equations solver categories