Question

If x+y=10 and x-y=4, find the value of x power 2 and y power2

Answer 1

Answer:

x²+y²=58

x²=49 and y²=9

Step-by-step explanation:

given,

x+y=10

=>x= 10-y

and,

x-y= 4

x=4+y

so,

10-y=4+y

2y=6

y=3

now in x+y=10

x=10-3

x=7

therefore x²= 7²=49

y²= 3²=9