Question

Find the value of(p+q)² given that p²+q²=36,and pq=7

Answer 1

p^2 + q^2 = 36
pq = 7

Now , (p+q)^2 = p^2 + q^2 + 2pq
= 36 + 2(7)
= 50

So, the answer is 50

Answer 2

just open the formula of (a^2+b^2) and you get answer 50