So I'm currently doing questions on binomial expressions, and I'm not sure as to how to do it after this >.> Any guidance? Thank you :]
This is the question: If , find the value of .
So this was what I tried to do:
I thought that it meant triple (we are currently doing expressions related to ^^)
So this was what I did:
And then I simply substituted as given in the question:
And multiplied, and got the answer:
But I'm pretty sure that what I have done is completely wrong.. any help?