AshPlay AshPlay

31-05-2021
Mathematics

contestada

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

Respuesta :

wsong214 wsong214

31-05-2021

Answer:

44

Step-by-step explanation:

x^2 + y^2 = 14

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

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peytonkern1 peytonkern1

31-05-2021

was the other answer right?

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