A coin jar contains 10 quarters, 6 dimes, and 8 nickels. Find the probability that a dime is chosen at random from the jar and t
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Answer:
Step-by-step explanation:
+ 3 = -z
= -z - 3
Square both sides , we have
2z =
2z = + 6z + 9
re arranging the equation , we have
+ 6z - 2z + 9 = 0
+ 4z + 9 = 0
This will give a complex roots , solving by quadratic formula
z = -2 + i , -2 -
i