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Mathematics 13 Online
OpenStudy (anonymous):

z3-27p3 please help

OpenStudy (anonymous):

\[z^3-27p^3\]

OpenStudy (callisto):

What do you need to do?

OpenStudy (callisto):

@Mandy86 If you don't tell what you need to do, how can I help?

OpenStudy (anonymous):

factor the polynomial

OpenStudy (callisto):

z3-27p3 can be rewritten as (z)^3 - (3p)^3 Now, use the identity a^3 - b^3 = (a-b)(a^2 +ab +b^2) Put a = z and b=3p , can you work it out?

OpenStudy (anonymous):

yes thank you

OpenStudy (callisto):

welcome :)

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