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If 3x2+3y2=42 and xy= -15, find the value of (x-y)2
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If 3x2+3y2=42 and xy= -15, find the value of (x-y)2

User Hardmooth
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2 Answers

2 votes
was the other answer right?
User MadhaviJ
by
3.2k points
4 votes

Answer:

44

Explanation:

x^2 + y^2 = 14

(x-y)^2 x^2 + y^2 - 2xy = 14 -2 * (-15) = 44

User Poulami
by
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