Find the least common multiple of these two expressions

Question

20y⁴x⁸ and 8y⁷u⁶x³

Answer 1

To find the LCM with exponents you find the LCM of the bases and add the exponents that are the highest for each variable.

So:

20- 20,40,60,80

8-8,16,24,32,40

40 y⁷u⁶x⁸