Question

if p+q=8 and p-q=4,then find pq​

Answer 1

Answer:

hope it will helpful for you

Step-by-step explanation:

p is 6 and q is 2

Answer 2

$p + q = 8 \: \: and \: p - q = 4 \\ \\ We \: \: know, \\ \\ ( {p + q})^{2} = ( {p - q})^{2} + 4pq \\ \\ = > {8}^{2} = {4}^{2} + 4pq \\ \\ = > 64 = 16 + 4pq \\ \\ = > 64 - 16 = 4pq \\ \\ = > 48 = 4pq \\ \\ = > 4pq = 48 \\ \\ = > pq = \frac{48}{4} \\ \\ = 12$

I hope this helps.