Ex 4.2, 1 (i) Class 10 - Find roots of x^2 - 3x - 10 = 0 [with Video] - Ex 4.2

 

 

 

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Ex 4.2, 1 Find the roots of the following quadratic equations by factorization: (i) x2 – 3x – 10 = 0 x2 – 3x – 10 = 0 We factorize using splitting the middle term method x2 + 2x – 5x – 10 = 0 x (x + 2) – 5(x + 2) = 0 (x – 5) (x + 2) = 0 Hence , x = 5 and x = –2 are the roots of equation

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