One mark exercise problems I — task. Mathematics State Board, Class 8.

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1. Factors of \(9x^2 + 6xy\) are .

2. Factors of \(4 - m^2\) are .

3. \((x + 4)\) and \((x - 5)\) are the factors of

\(x^2 - x + 20\)
\(x^2 - x - 20\)
\(x^2 + x - 20\)
\(x^2 - 9x - 20\)

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