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Completing the square and Word Problems
Ex 4.3, 1 (ii) Important Deleted for CBSE Board 2024 Exams
Ex 4.3, 1 (iii) Deleted for CBSE Board 2024 Exams
Ex 4.3, 2 (i) Deleted for CBSE Board 2024 Exams
Ex 4.3, 2 (ii) Important Deleted for CBSE Board 2024 Exams
Ex 4.3, 3 Deleted for CBSE Board 2024 Exams
Ex 4.3, 4 Important Deleted for CBSE Board 2024 Exams
Ex 4.3, 5 Deleted for CBSE Board 2024 Exams
Completing the square and Word Problems
Last updated at May 29, 2023 by Teachoo
Ex 4.3 ,1 Find the nature of the roots of the following quadratic equations. If the real roots exist, find them: (i) 2x2 – 3x + 5 = 0 2x2 – 3x + 5 = 0 Comparing equation with ax2 + bx + c = 0 a = 2 , b = –3, c = 5 We know that , D = b2 – 4ac = (–3)2 – 4 × 2 × 5 = 9 – 40 = – 31 Since D < 0 Hence, there are no real roots