Question

2
If x + y = 8 and xy = 3, find the values of
(ii) 3(x2 + y2)

(i) x - y
(iii) 5(x2 + y2) + 43-4​

Answer 1

Answer:

(ii) 3×2(x+y)

=6×8

=48

(iii) 5×2(x+y)+39

=10×8+39

=119

sorry I don't know the (i) question

hope it is helpful