Expand the expression — task. Maths CBSE Live product, Class 8 (2026-27).

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(3 + 11 v) (3 - 11 v)

Answer:

The identity used is

{(a + b) (a - b) = i}^{i} - i^{i}

(3 + 11 v) (3 - 11 v)

\(=\)

i - i i^{i}

[Note: Insert constant first and then term with variable. While entering terms, coefficient with sign is followed by the variable.]

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3. Expand the expression