Question

if p-q = 9 and pq = 36 find (p+q)​

Answer 1

Answer:

p-q=9

(p-q)²=9²               (Squaring both sides LHS and RHS)

p²+q²-2pq = 81      

p²+q²-2×(36)=81     (Substituting value of pq)

p²+q²-72=81         (Transferring -72 from LHS to RHS)  

p²+q²=153

(p+q)²=p²+q²+2pq

(p+q)²=153+(2×36)    

(p+q)²=153+72=225

(p+q)²=225

p+q=15

Answer 2

Answer:

Hope it's help you good night and take care