Question

If x+y=9 and xy=16, find x^2 - y^2

Answer 1

Answer:

kindly refer the attachment above

Answer 2

Answer:

49

Step-by-step explanation:

x+y=9 ; xy=16 ; x^2+y^2=?

(x+y)^2=x^2+y^2+2xy

(9)^2=x^2+y^2+2(16)

81=x^2+y^2+32

81-32=x^2+y^2

x^2+y^2=49

YOU WROTE THE QUESTION WRONG BUT I GAVE YOU THE ANSWER

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