Question

find the value of p and q with reason
6 P Q
+ P Q 7
________
1 2 4 5
​

Answer 1

Answer :

$\frac{9}{2}$

Step - by - Step explanation :

$p + q = 4 \\ and \: {p}^{2} + {q}^{2} = 7 \\ (p + q)^{2} = (4) ^{2} \\ = 16 \\ = {p}^{2} + {q}^{2} + 2pq = 16 \\ = 7 + 2pq = 16 \\ = 2pq = 9 \\ pq = \frac{9}{2}$

Hope it helps (ㆁωㆁ)