HI, I need help with this one (x^1/2 - y^1/2)^5. just need to know where to start. Thanks.
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Originally Posted by anthonye HI, I need help with this one (x^1/2 - y^1/2)^5. just need to know where to start. Thanks. the formula for a binomial expansion is probably a good place to start note that
ok but what do I do with the powers on the variables?
Originally Posted by anthonye ok but what do I do with the powers on the variables?
Just not seeing a method here?
Go to the formula. Wherever you see an , replace it by . Wherever you see a , replace it by . Example: becomes
Last edited by SlipEternal; Dec 24th 2013 at 11:18 AM.
OK but wouldn't the first term be 5c0(x^1/2)^5.
Yes, that is correct. . In other words, .
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