Find the square of the difference — task. Mathematics CBSE, Class 9 New.

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What is the expansion of the expression \((7a - 2b)^2\)?

\(49a^2 - 14ab + 4b^2\)
\(49a^2 + 14ab + 4b^2\)
\(49a^2 + 28ab + 4b^2\)
\(49a^2 - 28ab + 4b^2\)

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