SOLUTION: How do you write (3+5i)(2+i) as a complex number in standard form?

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Question 618091: How do you write (3+5i)(2+i) as a complex number in standard form?
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Do the arithmetic using the principles you already know. Then combine like terms and put into the form a + bi
%283%2B5i%29%282%2Bi%29
6+%2B+3i+%2B+10i+%2B+5i%5E2
6+%2B+13i+-+5 remember i^2 = -1
1+%2B+13i