4r^5-84r^3=0

Simple and best practice solution for 4r^5-84r^3=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 4r^5-84r^3=0 equation:


Simplifying
4r5 + -84r3 = 0

Reorder the terms:
-84r3 + 4r5 = 0

Solving
-84r3 + 4r5 = 0

Solving for variable 'r'.

Factor out the Greatest Common Factor (GCF), '4r3'.
4r3(-21 + r2) = 0

Ignore the factor 4.

Subproblem 1

Set the factor 'r3' equal to zero and attempt to solve: Simplifying r3 = 0 Solving r3 = 0 Move all terms containing r to the left, all other terms to the right. Simplifying r3 = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(-21 + r2)' equal to zero and attempt to solve: Simplifying -21 + r2 = 0 Solving -21 + r2 = 0 Move all terms containing r to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 21 + r2 = 0 + 21 Combine like terms: -21 + 21 = 0 0 + r2 = 0 + 21 r2 = 0 + 21 Combine like terms: 0 + 21 = 21 r2 = 21 Simplifying r2 = 21 Take the square root of each side: r = {-4.582575695, 4.582575695}

Solution

r = {-4.582575695, 4.582575695}

See similar equations:

| 120=l*6*2 | | 3+3=9x | | -6+5(7-6v)=-3v-25 | | 4x^2+25(x^2+4)=100 | | -5b=54 | | 15-1x=21 | | 5(2x+3)=3(4x+1)-2(3x-2) | | C=8a-3bfora | | 6x+3(6x-3)=18 | | 15s=3.75 | | 4t+2=6t-13 | | -8(a-3)+4(3-7a)=0 | | 11x+(8x+5)+15= | | N-9=3.4 | | (4n-2)(4n-6)= | | (2x-y)48=108 | | B+1.5(b+2)+15+26=90 | | 4(3x+8)-9=2(6x+8)+39 | | 5p-4=8p+5 | | 4x+1.2=6x+.2 | | 120+T=17 | | 5(t)=3t^2+9 | | Y=18x+2 | | 4-7v=v-2-6v | | X+2x+3=39 | | 3(7n+1)=3(6n+6) | | -8.5/3.5 | | 35=7*w*5 | | y-10=6x | | 2n+5=3n-6 | | 1-y=10 | | 14z=145 |

Equations solver categories