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Mathematics 9 Online
OpenStudy (anonymous):

Multiply 6-3 Square root 2 by its conjugate. What is the result?

OpenStudy (anonymous):

\[6-3\sqrt{2}\] is the equation

OpenStudy (anonymous):

(6-3sqrt2)(6+3sqrt2)... should give you 54

OpenStudy (anonymous):

I'm sorry I was wrong. It is 18... Since the conjugate causes the last terms to be negative.

OpenStudy (anonymous):

Yes, I figured it was 18. Just did the calculations thank you for your help! :)

OpenStudy (anonymous):

Anytime :)

OpenStudy (anonymous):

Would you happen to know the answer to this one 3 square root of 15 lies between two consecutive integers. What would the two consecutive integers be?

OpenStudy (anonymous):

Yeah. Your result is 11.61. So your two integers would be 11 and 12

OpenStudy (anonymous):

|dw:1319495473653:dw|\[\sqrt[3]{15}\]

OpenStudy (anonymous):

is it 3 times root 15 or the 3rd root of 15

OpenStudy (anonymous):

3rd root of 15

OpenStudy (anonymous):

oh ok, then your answer is 2.466 so your two integers would be 2 and 3

OpenStudy (anonymous):

That's what I got the first time, but I thought I was doing it incorrectly, thanks again :)

OpenStudy (anonymous):

of course! Glad I could help

OpenStudy (anonymous):

:)

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