I couldn't understood this please help me
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Step-by-step explanation:
Given :-
x²-y² = 11
To find:-
Find the values of x and y ?
Solution:-
Given equation is x²-y² = 11
It can be written as
(x+y)(x-y) = 11
=> (x+y)(x-y) = 11×1
=> (x+y)(x-y) = (6+5)(6-5)
On Comparing both sides then
=> x = 6 and y = 5
Answer:-
The values of x and y for the given problem are 6 and 5 respectively.
Check:-
If x = 6 and y = 5 then the value of x²-y²
=> 6²-5²
=> (6×6)-(5×5)
=> 36-25
=> 11
Verified the given relations in the given problem.
Used formulae:-
- (a+b)(a-b) = a²-b²
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