Class-10 Ex 4.1 Q1(i, ii, iii, iv), Maths (Quadratic Equations) NCERT Book, CBSE Board, Chapter - 4

Class-10 Ex 4.1 Q1(i, ii, iii, iv), Maths (Quadratic Equations) NCERT Book, CBSE Board, Chapter - 4

Maths, Class 10
Chapter - 4, Quadratic Equations
Exercise - 4.1, Q. No-1 (i, ii, iii, iv)

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

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