6r^3=15r^2-6r

Simple and best practice solution for 6r^3=15r^2-6r 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 6r^3=15r^2-6r equation:


Simplifying
6r3 = 15r2 + -6r

Reorder the terms:
6r3 = -6r + 15r2

Solving
6r3 = -6r + 15r2

Solving for variable 'r'.

Reorder the terms:
6r + -15r2 + 6r3 = -6r + 15r2 + 6r + -15r2

Reorder the terms:
6r + -15r2 + 6r3 = -6r + 6r + 15r2 + -15r2

Combine like terms: -6r + 6r = 0
6r + -15r2 + 6r3 = 0 + 15r2 + -15r2
6r + -15r2 + 6r3 = 15r2 + -15r2

Combine like terms: 15r2 + -15r2 = 0
6r + -15r2 + 6r3 = 0

Factor out the Greatest Common Factor (GCF), '3r'.
3r(2 + -5r + 2r2) = 0

Factor a trinomial.
3r((1 + -2r)(2 + -1r)) = 0

Ignore the factor 3.

Subproblem 1

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

Subproblem 2

Set the factor '(1 + -2r)' equal to zero and attempt to solve: Simplifying 1 + -2r = 0 Solving 1 + -2r = 0 Move all terms containing r to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -2r = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -2r = 0 + -1 -2r = 0 + -1 Combine like terms: 0 + -1 = -1 -2r = -1 Divide each side by '-2'. r = 0.5 Simplifying r = 0.5

Subproblem 3

Set the factor '(2 + -1r)' equal to zero and attempt to solve: Simplifying 2 + -1r = 0 Solving 2 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1r = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1r = 0 + -2 -1r = 0 + -2 Combine like terms: 0 + -2 = -2 -1r = -2 Divide each side by '-1'. r = 2 Simplifying r = 2

Solution

r = {0, 0.5, 2}

See similar equations:

| 0.6=1+k+0.1 | | 18+6y=0 | | 1.4y-4.4=0.7y+0.57 | | 16t^2-50t-10=0 | | 0.72=0.4(x+1.4) | | (5x+7)(3x^2-13x+14)= | | 3x^2=-4+8x | | 4t^2-1=0 | | (7r^2)-14r=-7 | | 2x-4y-5x+2y= | | -4.5=1.5-x | | =x^3-7x^2-2x-40 | | (3x+4)(2x^2-11x+12)= | | y=-16x^2+72 | | 9v=108 | | y=16x^2+72x | | 81x^2+64=0 | | (2x+1)(x-3)=7 | | 2x^3-8x= | | 12-4(x+4)=13-5(x+3) | | =x(60-2x)(30-2x) | | 9p^2+36p=17 | | c^2=4c | | t^2-2t+1= | | t^2-8t+16= | | 8u^7-12u^6-36u^5=0 | | 9p^2+54p=13 | | -25=4x+2x-7 | | x+2=45 | | m-1/3-1/3-1/4-4=6 | | b^2+12b+27= | | 2.76x^2-12.42x-6.9=0 |

Equations solver categories