**(i) 2y ^{2} + y – 45**

**(ii) 5 – 4x – 12x ^{2}**

**Answer :**

**(i) 2y**^{2} + y – 45

^{2}+ y – 45

2y^{2} + 10y – 9y – 45

Take out common in all terms we get,

2y (y + 5) – 9(y + 5)

(y + 5) (2y – 9)

**(ii) 5 – 4x – 12x**^{2}

^{2}

5 – 4x – 12x^{2}

5 – 10x + 6x – 12x^{2}

Take out common in all terms we get,

5(1 – 2x) + 6x(1 – 2x)

(1 – 2x) (5 + 6x)

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