Question

find the value of n if pqn =(3p+q)2-(3p-q)2.
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Answer 1

Step-by-step explanation:

$(3p+q) ^ { 2 } -(3p-q) ^ { 2 }$

$9p^{2}+6pq+q^{2}-\left(3p-q\right)^{2}$

$9p^{2}+6pq+q^{2}-\left(9p^{2}-6pq+q^{2}\right)$

$9p^{2}+6pq+q^{2}-9p^{2}+6pq-q^{2}$

$6pq+q^{2}+6pq-q^{2}$

$12pq+q^{2}-q^{2}$

$12pq$

Answer 2

Answer:

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