Скачать или смотреть Q1 Exercise 4.1 | Ch 4 Quadratic Equation द्विघात समीकरण | Class 10 Maths - NCERT

EXERCISE 4.1
1. Check whether the following are quadratic equations :
(i) (x + 1)2 = 2(x – 3) (ii) x2 – 2x = (–2) (3 – x)
(iii) (x – 2)(x + 1) = (x – 1)(x + 3) (iv) (x – 3)(2x +1) = x(x + 5)
(v) (2x – 1)(x – 3) = (x + 5)(x – 1) (vi) x2 + 3x + 1 = (x – 2)2
(vii) (x + 2)3 = 2x (x2 – 1) (viii) x3 – 4x2 – x + 1 = (x – 2)3
अभ्यास 4.1
1. जाँच कीजिए कि क्या निम्नलिखित द्विघात समीकरण हैं:
(i) (x + 1)2 = 2(x - 3) (ii) x2 - 2x = (-2) (3 - x)
(iii) (x - 2)(x + 1) = (x - 1)(x + 3) (iv) (x - 3)(2x +1) = x(x + 5)
(v) (2x - 1)(x - 3) = (x + 5)(x - 1) (vi) x2 + 3x + 1 = (x - 2)2
(vii) (x + 2)3 = 2x (x2 - 1) (viii) x3 - 4x2 - x + 1 = (x - 2)3

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