3x^2=-9x-54

Simple and best practice solution for 3x^2=-9x-54 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 3x^2=-9x-54 equation:


Simplifying
3x2 = -9x + -54

Reorder the terms:
3x2 = -54 + -9x

Solving
3x2 = -54 + -9x

Solving for variable 'x'.

Reorder the terms:
54 + 9x + 3x2 = -54 + -9x + 54 + 9x

Reorder the terms:
54 + 9x + 3x2 = -54 + 54 + -9x + 9x

Combine like terms: -54 + 54 = 0
54 + 9x + 3x2 = 0 + -9x + 9x
54 + 9x + 3x2 = -9x + 9x

Combine like terms: -9x + 9x = 0
54 + 9x + 3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(18 + 3x + x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(18 + 3x + x2)' equal to zero and attempt to solve: Simplifying 18 + 3x + x2 = 0 Solving 18 + 3x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-18' to each side of the equation. 18 + 3x + -18 + x2 = 0 + -18 Reorder the terms: 18 + -18 + 3x + x2 = 0 + -18 Combine like terms: 18 + -18 = 0 0 + 3x + x2 = 0 + -18 3x + x2 = 0 + -18 Combine like terms: 0 + -18 = -18 3x + x2 = -18 The x term is 3x. Take half its coefficient (1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. 3x + 2.25 + x2 = -18 + 2.25 Reorder the terms: 2.25 + 3x + x2 = -18 + 2.25 Combine like terms: -18 + 2.25 = -15.75 2.25 + 3x + x2 = -15.75 Factor a perfect square on the left side: (x + 1.5)(x + 1.5) = -15.75 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:

| 5/6x-4--2 | | K-17=-17 | | 6y+18-5y=15 | | 3(v-6)-5v=-36 | | 3w(w-6)-3=-3(-5w+5)-2w | | 6x-2=x+13The | | 3[-2(4x+5)+4(5x-5)]= | | 63-4/9 | | -45+5x=6x+32 | | -95.31=x/3 | | 4/7*14/8(y-2) | | 11x-19=23 | | 4log(x)-6=2log(x) | | 23=5(x+3) | | 4lg(x)-6=2lg(x) | | gx=144 | | (x+1)(x-2)=(x-1)(x-1) | | -5/6=3/4n | | (3x-1)/(x-4)=0 | | 5x-8=3x-11+8 | | 2z-12-1=z-25+z | | 3/1728 | | 6(-2-3x)+8= | | -x-4=3x+6 | | -3-3x/21 | | 2(3m-9)-3(m-2)= | | 4x+5=8x+5 | | 7x-2=9x-4 | | 9x-9=19x-19 | | 11x-12=13x-20 | | 6x+3y=153 | | x+y=1.23 |

Equations solver categories