Question

gcf of 400x^2 and pi(64*pi*x^2)^2

Answer 1

first look at the 2 numbers 400 and 64^2

Answer 2

what is the greatest common factor of these 2

writting them as prime factors will help

400 = 2*2*2*2*5*5
64^2 = 2^12

Answer 3

16?

Answer 4

right

Answer 5

now you just have the terms in x to deal with
what is the GCF of x^2 and (x^2)^2?

Answer 6

that is an easy one - it is of course x^2

Answer 7

so our answer is 16x^2

Answer 8

thanks