Question

if x-y= 10 and xy = 52 then find X²+Y² =?​

Answer 1

Step-by-step explanation:

(x-y)² = 10²

x² + y² -2xy = 100

x²+y² -2(52) = 100

x² + y² = 100 + 104

x² + y² = 204

Answer 2

Answer:

we know that,

a²+b² = (a-b)²+2ab

x²+y²=(x-y)²+2ab

=10²+(2×52)

100+104

204