Question

if x-y =8 and xy=5 find x²+y²​

Answer 1

Answer:

74

Step-by-step explanation:

given:-

x-y=8

xy=5

to find

x2+y2

now apply

(x-y)2=x2+y2-2xy

(8)2=x2+y2-2×5

64=x2+y2-10

74=x2+y2

Please mark BRAINLIEST....:)

Answer 2

Answer:

x^2+y^2=74

Given:

x-y=8, xy=5

Find:

x^2-y^2

Solution:

(x-y)^2=(8)^2

x^2+y^2-2xy=64

Put the value of xy=5

=x^2+y^2-2(5)=64

=x^2+y^2-10=64

=x^2+y^2=64+10

=x^2+y^2=74

.....plzzz mark the answer as brainliest ☺☺