Question

please solve............................. ​

Answer 1

Answer:

9 is your answer sis

had you have your lunch

Answer 2

Answer:

± 5

Step-by-step explanation:

x+y=9

On squaring both sides ,

x

2

+y

2

+2xy=81

Putting value of xy = 14

x

2

+y

2

+28=81

x

2

+y

2

=81−28=53............(i)

(x−y)

2

=x

2

+y

2

−2xy

Putting xy = 14 and (i)

(x−y)

2

=53−2(14)=53−28

(x−y)

2

=25

⇒x−y=±

25

=±5

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