Math, asked by sumantosarvankar, 8 months ago

Xy=18 and x2 + y2=85 find x-y

Answers

Answered by briellamikel

1

Answer:

Step-by-step explanation:

We know that,

(a + b)2 = a2 + 2ab + b2

(x + y)2 = x2 + 2xy + y2 = 85 + 2( - 18) = 85 - 36 = 49

(x + y)2 = 72

(x + y) = 7

∴ (x + y) = 7

hope i answered ur question

sorry

Answered by vikyraj380

1

Answer:

good question hhhhhhhhhhhhh

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