MathInvoling i's
posted by Joey on .
1)What is the product of 5+ Radical (36) and 1Radical (49) expressed in simplest a+bi Form?
2) Express Radical (27) + i^22 + 3Radical (25) +5 Radical (3) in simplest a+bi form.

(5 + √36)(1√49)
= (5 + 6i)(1  7i)
= 5  35i + 6i  42i^2
= 5  29i + 42
= 49  29i
2) √27 + i^22 + 3  √25 + 5√3
= 3√3i + (1) + 3  5i + 5√3i
= 8√3i  5i + 2
= (8√3  5)i + 2 
Try '42'. It is the answer to Life, the Universe, and Everything.

12,8 and 3,4

pnus