Expand the square — task. Maths CBSE Mentoring, Class 9 Mentoring product.

{(9 x - 13 y - z)}^{2}

\(=\)

i i^{i} + i i^{i} + i^{i} - i x y + i y z - i x z

[Note: Enter the answer in the order of its identity with its coefficient.]

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13. Expand the square