-X(X+3)+2X-1=6

Simple and best practice solution for -X(X+3)+2X-1=6 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+3)+2X-1=6 equation: 


Simplifying
-1X(X + 3) + 2X + -1 = 6

Reorder the terms:
-1X(3 + X) + 2X + -1 = 6
(3 * -1X + X * -1X) + 2X + -1 = 6
(-3X + -1X2) + 2X + -1 = 6

Reorder the terms:
-1 + -3X + 2X + -1X2 = 6

Combine like terms: -3X + 2X = -1X
-1 + -1X + -1X2 = 6

Solving
-1 + -1X + -1X2 = 6

Solving for variable 'X'.

Reorder the terms:
-1 + -6 + -1X + -1X2 = 6 + -6

Combine like terms: -1 + -6 = -7
-7 + -1X + -1X2 = 6 + -6

Combine like terms: 6 + -6 = 0
-7 + -1X + -1X2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(7 + X + X2) = 0

Ignore the factor -1.

Subproblem 1
Set the factor '(7 + X + X2)' equal to zero and attempt to solve:

Simplifying
7 + X + X2 = 0

Solving
7 + X + X2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-7' to each side of the equation.
7 + X + -7 + X2 = 0 + -7

Reorder the terms:
7 + -7 + X + X2 = 0 + -7

Combine like terms: 7 + -7 = 0
0 + X + X2 = 0 + -7
X + X2 = 0 + -7

Combine like terms: 0 + -7 = -7
X + X2 = -7

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 = -7 + 0.25

Reorder the terms:
0.25 + X + X2 = -7 + 0.25

Combine like terms: -7 + 0.25 = -6.75
0.25 + X + X2 = -6.75

Factor a perfect square on the left side:
(X + 0.5)(X + 0.5) = -6.75

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:

| 3000-p+60=2050 | | 15x-9=15x+9 | | x^5+2x^4y-35x^3y^2-3x^4+15x^3y=0 | | 5x+1+8=7-2 | | ln(7/x)=56.626 | | ln(7/k)=56.626 | | 18s=162 | | 8x+(5x-6-4x-1)=x-(x-4) | | (2.6-y)/2.6=0.14 | | 80s=2000000 | | 5s=225 | | 14x^2-31x+15= | | x+5-3=1 | | 14x^2-31x-15= | | 5(3y-2)= | | 5x(3y-2)= | | 8c+2=12 | | 6x*x+5x-4=0 | | .5x-.1(5-x)=1.6 | | 800x-7=9(2x+50) | | 10x+25y+25z=1670 | | 7c-5=16 | | 8x+7=9(x+5) | | 2x^2-8x-4= | | x=2y+16 | | x+x+10+2x-50+x-30=360 | | 8x=180+10-20-40 | | .12*n=9 | | x+x+10+2x-30=180 | | -3-8e+15+2e=4e+42 | | (-X*X)+5X-1=6 | | x^3-x^2+x-0.75=0 |

Equations solver categories