Question

Simplity (3x+2y+7z)^2​

Answer 1

Answer:

${(3x + 2y + 7z)}^{2} = 9 {x }^{2} + 4 {y}^{2} + 49 {z}^{2} + 6xy + 14yz + 21zx$

Answer 2

Step-by-step explanation:

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