SOLUTION: Factor completely. If prime, say so.
125r^3 -8s^3
Algebra.Com
Question 318832: Factor completely. If prime, say so.
125r^3 -8s^3
Answer by excoastie725(4) (Show Source): You can put this solution on YOUR website!
This problem is a difference of cubes so the final answer has to end with the formula in this format: (x+y)(x^2-xy+y^2).
Your problem 125r^3-8s^3 the cube root of 125r^3 is 5r and the cube root of 8s^3 is 2s. Knowing that you now use the format above to plug in those numbers in for x and y giving you....
(5r+2s)(5r^2-((5r)(2s))+2s^2)
now you multiply the middle together giving you your final answer of....
(5r+2s)(5r^2-10rs+2s^2)
RELATED QUESTIONS
Factor completely. If prime, say so.
a. 40x^3-64x^2y
b. 125r^3-8s^3
(answered by JBarnum)
Factor completely. Say if prime:
A. 40x^3-64x^2y
B. 125r^3-8s^3
C. 13-14y+y^2
D.... (answered by jim_thompson5910)
Hello. Could you please help me?
I have to factor these completely, and if prime, say... (answered by romerr1)
Factor completely. If prime, say so.
5c^2 + 2c -... (answered by mananth)
Factor completely. If it is prime, say so.... (answered by jim_thompson5910)
Factor completely. If it is prime, say so.... (answered by Earlsdon)
Factor completely. If it is prime, say so.... (answered by ankor@dixie-net.com)
Factor the polymomial completely. If a ploynomial is prime say so.... (answered by checkley71,jim_thompson5910)
Factor completely if it is a prime say so.... (answered by vleith)