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Maths Puzzle
Numerical Ability
17i divided by (4-1) = 17i over 4-i This I understand - partially anyway...but I am being told that my answer must be in the A + Bi form...this I do not understand
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book Other Question
This is from page 100, #26 of Dr. Rapalje's Intermediate Algebra book- One Step at a Time.
(x + y)to the 3rd power = (x + y) (x + y) (x + y)
= (x + y)
solve system using elimination x + 2y = 7 3x - 2y = -3