**SUBJECT –** MATHS

**CLASS –**** X** (10th)

**QUESTION FROM –** Quadratic Equation (Exercise 4.1)

**ALL EXTRA & IMPORTANT QUESTION ANSWER FOR 2019 EXAMS**

**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) x3–4×2–x+1=(x–2)3 **

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