Question

the value of x+y =9 xy=14 find x-y and x^2 -y^2​

Answer 1

Answer of this question is 45

Answer 2

Step-by-step explanation:

x+y=9

xy=14

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

=>(x-y)^2=(9)^2-4×14

=>(x-y)^2=81-56

=>(x-y)^2=25

=>(x-y)^2=5^2

=>(x-y)=5

so x-y=5

now,(x^2-y^2)=(x+y)(x-y)=9×5=45