Question 1083283
Calculate (2+i)^7. Give your answer in  a+bi form
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Step 1, find (2+i)^2
Step 2, multiply that by (2+i) --> (2+i)^3
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Step 3, square that --> (2+i)^6
Step 4, multiply that by (2+i) --> (2+i)^7
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The practice will do you good.
I don't need any.