Math, asked by manvisingh80, 1 month ago

Find the value of (x^2 + y^2) if xy= -15 and x-y = 6
Just to inform the answer is 6
so plz explain​

Answers

Answered by purva14252
1

Step-by-step explanation:

x-y=6

squaring both the sides

(x-y)^2=6^2

x^2+y^2-2xy=36

xy=-15 (given)

x^2+y^2+30=36

hence x^2+y^2=6

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