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Last updated at Aug. 3, 2021 by Teachoo
Ex 4.2 ,1 Find the roots of the following quadratic equations by factorization: (iii) 2 x2 + 7x + 5 2 = 0 2 x2 + 7x + 5 2 = 0 We will factorize by splitting the middle term method 2 2+2 +5 +5 2=0 2 2+( 2 2) +5 +5 2=0 2 ( + 2)+5( + 2)=0 ( 2 +5)( + 2)=0 So, x = ( 5)/ 2 = 2 are the roots of equation