Two mark example problems X — task. Mathematics State Board, Class 9.

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Factorise \((x + y)^2 + 9(x + y) + 20\) by splitting the middle term.

Answer:

The solution is

\((x + y + 4)\) and \((x + y - 5)\)
\((x + y - 4)\) and \((x + y + 5)\)
\((x + y - 4)\) and \((x + y - 5)\)
\((x + y + 4)\) and \((x + y + 5)\)

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