Question

Expand the following using suitable identities (2x-3y+4z)²

Answer 1

Identity used:

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

(2x)² + (3y)² + (4z)² + (2 * 2x * 3y) + (2 * 3y * 4z) + (2 * 2x * 4z)

= 4x² + 9y² + 16z² + 12xy + 24yz + 16xz

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Answer 2

Answer:

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Step-by-step explanation:

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