Question

. please
answer it
please
ok
bye​

Answer 1

Answer:

Square both the side first

Step-by-step explanation:

Square both the sides first

We get x2 + 2xy + y2=144

Then xy is 27

x2 + 2(27) + y2 =144

x2 + y2 = 144-54

x2 + y2 = 90

Answer 2

Step-by-step explanation:

x+ y=12

xy =27

(x+y)²= x2 +y²+2xy

12²= x2+y2+2×27

144=x²+y²+54

x²+y²=144-54

90