Question

if p=2- root 5/ 2+ root 5 q=2+ root 5/ 2+ root 5 find the value of p2-q2​

Answer 1

Step-by-step explanation:

p

2

−q

2

We know that, p

2

–q

2

=(p+q)(p–q)

So, by substituting the values

p

2

–q

2

=(p+q)(p–q)

=(−18)(8

5

)

=−144

5