March 28, 2017

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How do i do this question using the binomial theorem concept? It says,

expand (2+x)^5 up to x^2 term, hence, expand (2 + x + x^2)^5 up to the x^2 term.

I could do the first part, and the answer would be (32 + 80x + ...)
But how should i make use of the answer i got in the second part?

please help!

  • binomial theorem! - ,

    Do the second part this way:

    ((2+x) + x^2)^5

    you get the x^2 term really fast.

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