Question

lf x²+y²=29 and xy =2, find the value of x-y and x²+y²
​

Answer 1

Answer:

Step-by-step explanation:

we know that,

x²+y²-2xy = (x-y)²

so , now substitute the given values in equation

we get , => 29-2(2) = (x-y)²

=> 29-4 = (x-y)²

=> 25 = (x-y)²

=> √25 = (x-y)

=> 5 = (x-y)

=> -5 = (x-y)