Question

If p-q=9 and PQ =36find p+q

Answer 1

Answer:

Step-by-step explanation:

p - q =9 .....(i)

pq =36 .....(ii)

Then

(p - q)^2 = 9^2

==>(p + q)^2 - 4pq = 81

==> (p + q)^2 - 4×36 =81

==> (p + q)^2 = 81 + 144

==>(p + q) ^2 = 225

==> (p + q) = 15