8-(x)(x)=20+x

Simple and best practice solution for 8-(x)(x)=20+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 8-(x)(x)=20+x equation:


Simplifying
8 + -1(x)(x) = 20 + x

Multiply x * x
8 + -1x2 = 20 + x

Solving
8 + -1x2 = 20 + x

Solving for variable 'x'.

Reorder the terms:
8 + -20 + -1x + -1x2 = 20 + x + -20 + -1x

Combine like terms: 8 + -20 = -12
-12 + -1x + -1x2 = 20 + x + -20 + -1x

Reorder the terms:
-12 + -1x + -1x2 = 20 + -20 + x + -1x

Combine like terms: 20 + -20 = 0
-12 + -1x + -1x2 = 0 + x + -1x
-12 + -1x + -1x2 = x + -1x

Combine like terms: x + -1x = 0
-12 + -1x + -1x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(12 + x + x2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(12 + x + x2)' equal to zero and attempt to solve: Simplifying 12 + x + x2 = 0 Solving 12 + x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-12' to each side of the equation. 12 + x + -12 + x2 = 0 + -12 Reorder the terms: 12 + -12 + x + x2 = 0 + -12 Combine like terms: 12 + -12 = 0 0 + x + x2 = 0 + -12 x + x2 = 0 + -12 Combine like terms: 0 + -12 = -12 x + x2 = -12 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. x + 0.25 + x2 = -12 + 0.25 Reorder the terms: 0.25 + x + x2 = -12 + 0.25 Combine like terms: -12 + 0.25 = -11.75 0.25 + x + x2 = -11.75 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = -11.75 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

See similar equations:

| 2/(-2/5) | | 2y+8=-6-7 | | u^2-2uv-80v^2= | | -9+(-4x)=-53 | | -x+5y=4 | | 0=10+4.9x-4.9x^2 | | 35+16= | | -2y=21 | | 6/7-1/3 | | 25x+10=415 | | 25x+40=415 | | x(25+10)=415 | | 5x^2=1-7x | | -17+x= | | 6+k/3=33 | | x+(-17)= | | (x^4/3)/(x^5/6) | | x-20+2(x+1/2)=8x-13 | | 15x-116=6x-8 | | -59-9x=162-37x | | x^4/3/x^5/6 | | 5-1(2/3) | | X*(x*2)=20 | | n+58=73 | | 5-1(1/3) | | 134-6x=21x+23 | | 3x+14=63-8x | | .7x+.4y=1000 | | x^3+x^2=20+5 | | 2(4c-1)-3=4c+3 | | y=4x^2-20x+16 | | n-49=28 |

Equations solver categories