Question

x²-y²=20
Then find the value of x and y

Answer 1

x² - y² = 20

(x + y)(x - y) = 2 × 10

(x + y)(x - y) = (6 - 4)(6 + 4)

on comparing L.H.S. and R.H.S.

we see,

x = 6

y = 4

Answer 2

Answer:

x is 6 and y is 7

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