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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