Maths qu? ?

Question

n=2squaredx5

write 40n as the product of it's prime factors

Answer 1

800, I think

Answer 2

n = 2^2 x 5

so n = 4 x 5

n = 20

therefore, 40n = 40 x 20

so 40n = 800

800 as a product of it's prime factors is 2 x 2 x 2 x 2 x 2 x 5 x 5

In other words, 40 n = 2^5 x 5^2

Btw, '^' means 'to the power of'

Hope that helps!

Answer 3

n = (2^2)(5)

40 = (2^3)(5)

40n = (2^5)(5^2)

Answer 4

Yep, I'd go for 800.

n = 2² x 5

n = 4 x 5

n = 20

40n is simply 40 x n:

40 x 20 = 800