Q:

Find the least common multiple of the following polynomials: 5y^2-80 and y+4 a. (y+4)(y-4) b. (y+4) c. 5(y+10)(y-8) d.5(y+4)(y-4)

Accepted Solution

A:
[tex]5y^2 - 80 = 5(y^2-16) = 5(y - 4)(y + 4) [/tex]

LCM of 5(y - 4)(y + 4) and (y + 4) is 5(y - 4)(y + 4)Β 

-----------------------------------------------------------------------
Answer: 5(y - 4)(y + 4)Β (Answer D)
-----------------------------------------------------------------------