Question

Simplify. 2 times the 4th root of 80

Answer 1

80 is not a perfect fourth power. What are perfect fourth powers?

x x^4
0 0
1 1^4=1
2 2^4=16
3 3^4=81

Split up that 80 so that one factor is a perfect fourth power.

Answer 2

5 * 16 = 80

Answer 3

so it would be 4√5??

Answer 4

yes

Answer 5

times 2?

Answer 6

yes you are right

Answer 7

so 8 √5

Answer 8

yep

Answer 9

but it is easy

Answer 10

Nice work, Hannah!

Answer 11

Thank you all!