Question

If p-9 =9 and pq =36,find
i)p2-q2​

Answer 1

Hi there !!

p-9 =9 ------(1) and pq =36-----(2)

To find :-

i)p2-q2​

p = 9 + 9

p = 18

Now put p in equation (2)

18q = 36

q = 2

Now, p²-q² = 18²- 2²

324 - 4= 320

Thankyou :)

Your question is correct ✓✓✓