Question

Simplity (3+3²" +3²¹)(3+3+3²)


The person who will give a step-by-step solution will be marked as a brainliest.

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Answer 1

Answer:

156905298225

Step-by-step explanation:

$(3+3^{2}+3^{21})(3+3+3^{2})$

= 3 + 9 + 10460353203 = 10460353215

=10460353215 * (3 + 3 + 9)

=10460353215 * 15

=156905298225

Answer 2

Answer:

5[3^2+3^(2n+1)+3^22]