2b^3-10b^2-72b=0

Simple and best practice solution for 2b^3-10b^2-72b=0 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 2b^3-10b^2-72b=0 equation:


Simplifying
2b3 + -10b2 + -72b = 0

Reorder the terms:
-72b + -10b2 + 2b3 = 0

Solving
-72b + -10b2 + 2b3 = 0

Solving for variable 'b'.

Factor out the Greatest Common Factor (GCF), '2b'.
2b(-36 + -5b + b2) = 0

Factor a trinomial.
2b((-4 + -1b)(9 + -1b)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor 'b' equal to zero and attempt to solve: Simplifying b = 0 Solving b = 0 Move all terms containing b to the left, all other terms to the right. Simplifying b = 0

Subproblem 2

Set the factor '(-4 + -1b)' equal to zero and attempt to solve: Simplifying -4 + -1b = 0 Solving -4 + -1b = 0 Move all terms containing b to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1b = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1b = 0 + 4 -1b = 0 + 4 Combine like terms: 0 + 4 = 4 -1b = 4 Divide each side by '-1'. b = -4 Simplifying b = -4

Subproblem 3

Set the factor '(9 + -1b)' equal to zero and attempt to solve: Simplifying 9 + -1b = 0 Solving 9 + -1b = 0 Move all terms containing b to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1b = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1b = 0 + -9 -1b = 0 + -9 Combine like terms: 0 + -9 = -9 -1b = -9 Divide each side by '-1'. b = 9 Simplifying b = 9

Solution

b = {0, -4, 9}

See similar equations:

| (12-y)y=40 | | 3b^2-108=0 | | xy^2+y^3= | | -2x+1=3 | | (11x+11)=(13x-11) | | (12x-15)=(9x+15) | | (4x-2)=(3x+14) | | 5x^2+21x+18=0 | | (7x-72)=(4x+18) | | (2x+4)=(7x-11) | | x^2+18+81=49 | | (2x+25)=(5x-3) | | (7x-3)=(6x+5) | | (x+9)=(2x+7) | | (14x-24)=(9x+6) | | (2x+3)=(3x+2) | | 180-70+20=130 | | (12x+23)=(16x-1) | | (15m)=(10m+45) | | 70-20+180=130 | | 3z+21-z= | | (7p-2)=(3p+2) | | (12m-10)=(10m+10) | | (3p+55)=(7p+15) | | (5n+9)=(8n+3) | | (2x-10)=(3x-60) | | 3x(23+5)= | | 3x+2x+65-20=180 | | 2x+3x=65+20 | | 2x-20=3x+65 | | 2(5p+3)=26 | | 2x+20=3x-65 |

Equations solver categories