Question

solve this expansion

(2p + q + 4r)²​

Answer 1

Answer:-

By using  the formula of,

( a + b + c )² ⇒ a² + b² + c² + 2ab + 2bc + 2ca

(2p + q + 4r)²​ ⇒ (2p)² + (q)² + (4r)² + 2 (2p) (q) + 2 (q) (4r) + 2 (4r) (2p)

(2p + q + 4r)²​ ⇒ 4p² + q² + 16r² + 4pq + 8qr + 16pr.

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