Question

IF x-y = 7 and xy = 8, find the value of (x+y) square ​

Answer 1

Step-by-step explanation:

(x+y)^2-4xy=(x-y)^2

(x+y)^2-4*8=7*7

(x+y)^2=49+32

x+y=√81

=9

Answer 2

Step-by-step explanation:

x-y=7 xy=8 find (x+y)^2