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Can someone please explain to me how to work this out?

Can someone please explain to me how to work this out?-example-1
User Paltaa
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1 Answer

1 vote

Answer:

B

Explanation:

the way i work it out is if you take the product and power it to the third you can easily find out which answer is correct. another way, if you don't have a calculator is to look at the last digit in the number in the square root sign.

For example, 3 square root 64 equals 8. you would look at the 4 and try to find 3 numbers that end in 4 OR is divisible three times by the number. 64 is exactly divisible by 4 only 3 times so you know that it can't be 8.

hope this helps!

User Arvanem
by
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