Ex 2.4, 15 (ii) - Chapter 2 Class 9 Polynomials

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Ex 2.4, 15 - For Area: 35y^2 + 13y - 12, give possible expressions - Ex 2.4

part 2 - Ex 2.4, 15 (ii) - Ex 2.4 - Serial order wise - Chapter 2 Class 9 Polynomials

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Ex 2.4, 15 Give possible expressions for the length and breadth of each of the following rectangles, in which their areas are given: (ii) Area : 35y2 + 13y – 12 First we factorize 35y2 + 13y – 12 We factorize using the splitting the middle term method = 35y2 + 28y – 15y – 12 = 7y(5y + 4) – 3 (5y + 4) = (5y + 4) (7y – 3) Hence, Area = (5y + 4) (7y – 3) Area = Length × Breadth Hence, there are two possibilities

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