Question

find the middle term of the expansion of x square + 3 by X into a power of 20

Answer 1

Answer:

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Answer 2

Answer:

184576×59049

Step-by-step explanation:

the given expansion is

(x² + 3)²°

x²°

so we have n + 1 terms

which means we have 20 + 1 terms

so the middle term will be 11 th term

the 11 term of the expansion of given form is

( x + 3/x )²°

so we get

t(r + 1) = ( nCr )(x^ n-r)((x/3)^r)

t11 =( 20C10 ) (x^10)(3/x)^10

we get ...

(184756)(59049)