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pheil1952 · May 25, 2009, 11:07 AM

What is meant by cube? like as 2 4 cubed? An example shows that it = 16 how did they work that? What is cubed?
Thank you, PH:confused:

Perito · May 25, 2009, 11:12 AM

I'm thinking that something is wrong because two cubed is not equal to 16: $2^3 \ne 16$

Squared is a number to the second power: $2^2=4$

Cubed is a number to the third power: $2^3=8$

Additional powers are usually said to be "to the nth power". For example,

$2^4=16$

because

$2\times 2\times 2\times2= 16$

$2 \times 2 = 4\, and \, 4\times2 = 8\,and\,8 \times 2 = 16$

pheil1952 · May 25, 2009, 11:31 AM

Originally Posted by Perito

I'm thinking that something is wrong because two cubed is not equal to 16: $2^3 \ne 16$

Squared is a number to the second power: $2^2=4$

Cubed is a number to the third power: $2^3=8$

Additional powers are usually said to be "to the nth power". For example,

$2^4=16$

because

$2\times 2\times 2\times2= 16$

$2 \times 2 = 4\, and \, 4\times2 = 8\,and\,8 \times 2 = 16$

Thank you this really helps, I know you are right :-)
PH