Question

- Given that x + y = 43 and 4xy = 48, find the value of
(i) (2x-2y)^2

Answer 1

Answer:

2^2 × (x-y)^2

4 × [ (x+y)^2 - 4xy]

4 × (43×43 -48 )

4 × ( 1849 - 48 )

4 × ( 1801 )

7204