Question

16x2 +9y2 + 4z2 + 24xy + 12yz + 16zx
Factorise

Answer 1

Step-by-step explanation:

4x^2 + 3y^2 + 2z^2 + (2×4x×3y) + (2×3y×2z) + (2×2z×4x)

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

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Answer 2

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