rajeevrastogi1008 rajeevrastogi1008

16-09-2020
Mathematics

contestada

if x+y = 10
and xy 21
find 2(x² + y ² )

Respuesta :

anjal78001 anjal78001

16-09-2020

Answer:

158

Step-by-step explanation:

2(x square + y square)

2 (X+y) square -2 xy

2(10) square -2(21)

2×100-42

200-42

=158

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