Asked by Anonymous
Find a pair of conjugates with a product of 5
Answers
Answered by
oobleck
(a-bi)(a+bi) = a^2 + b^2
so what two small perfect squares do you know that add up to 5?
Now if you are sticking to real numbers, and mean quadratic conjugates, then
(a+b)(a-b) = a^2 - b^2
so what two small perfect squares do you know that differ by 5?
so what two small perfect squares do you know that add up to 5?
Now if you are sticking to real numbers, and mean quadratic conjugates, then
(a+b)(a-b) = a^2 - b^2
so what two small perfect squares do you know that differ by 5?
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