Question

find the number of integral solutions for x^2-y^2=1428​

Answer 1

Answer:

☆۝ Q᭄ANS ۝☆

0

Now 352706 is an even function

∴x

2

−y

2

=2m⇒ either both x,y are even or both x,y are odd.

In any case both x+y and x−y are even integers.

2(x+y)2(x−y)=4(x

2

−y

2

) ⇒4(x

2

−y

2

)⇒

352706

4

But it is not true as 06 is not divisible by 4.

So number of integer solution is 0.

☆۝ Q᭄Hiren ۝☆

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