find the value (pq+5r) ^2
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Answer:
= p^2 q^2 + 25 r^2 + 10 pqr
Step-by-step explanation:
Given : ( pq + 5r )^2
This is in the form of : ( a + b )^2 = a^2 + b^2 + 2 * a* b
So :
= ( pq )^2 + ( 5r )^2 + 2 * pq * 5r
= p^2 q^2 + 25 r^2 + 10 pqr
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