Question

express in a+ib form (2+5i )3 i will mark as brainlist

Answer 1

Answer:

I hope this helpful to you

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Answer 2

Answer:

Step-by-step explanation:

(2+5i )3

=2*3 + 5i*3

= 6 + 15i

that is 6 + (15 * i)

          6 + i15 = a + ib

          a=6 and b=15

   THANK YOU!