Question

if x+y=8 and x-y=12, find x2+y2​

Answer 1

Step-by-step explanation:

given,

x+y=8

x-y=12

prove that,

x2+y2=?

solution :

x+y=8 --------(1)

x-y=12 -------(2) (adding both equations)

2x =20

x = 20

2

x=10

puting the value of x in equation (1)

x+y=8

10+y=8

y=8-10

y=-2

now, x2+y2

(10)2+(-2)2

100+4

104 answer

Answer of your question

brainlist karna mat bhulna