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

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1. Factorise \(2x^2 + 15x - 27\) by splitting the middle term.

Answer:

The solution is

\((x + 9)\) and \((2x - 3)\)
\((x - 9)\) and \((2x + 3)\)
\((x + 9)\) and \((2x + 3)\)
\((x - 9)\) and \((2x - 3)\)

2. Factorise \(2x^2 - 15x - 27\) by splitting the middle term.

Answer:

The solution is

\((x + 9)\) and \((2x + 3)\)
\((x + 9)\) and \((2x - 3)\)
\((x - 9)\) and \((2x + 3)\)
\((x - 9)\) and \((2x - 3)\)

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