5^21 * 4^11 = 5^21* (2^2)^11 = 5^21* (2^21 * 2) = 2 * 10^21RANDY ROCHE wrote:5^21 * 4^11 = 2 * 10^n
Thanks in advance.
So n = 21
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5^21 * 4^11 = 5^21* (2^2)^11 = 5^21* (2^21 * 2) = 2 * 10^21RANDY ROCHE wrote:5^21 * 4^11 = 2 * 10^n
Thanks in advance.
(2^2)^11 = 2^22 = 2^11 *2doubter wrote:wait a minute...
how does
5^21* (2^2)^11 = 5^21* (2^21 * 2)
?? i get the part where 4^11 = (2^2)^11..
but how does that become ( 2^21 *2 )
Well.. guess what??.. the original OP and kind soul are posting from similar IP addresses .. too much of a coincidence i would sayri2007 wrote:hi Gabriel
I must say even I though it was spamming, even though I answered the question 2 times. It could still be spamming, but well best to move on.
this is a great forum, with most people very helpful.
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