**SUBJECT –** MATHS

**CLASS –**** X** (10th)

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

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

**Ex 4.1 – Quadratic Equation (Full Exercise Solution + Video) NCERT | Explained In Hindi**

**Q1. 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**

*Solutions For Question Number 1 Is In The Video Below (Explained In Hindi) :- *

**Q2. Represent the following situation in the form of quadratic equation:**

**(i)** The area of a rectangular plot is 528 m^{2}. The length of the plot (in meters) is one more than twice its breadth. We need to find the length and breadth of the plot.

**(ii)** The product of two consecutive positive integers is 306. We need to find the integers.

**(iii)** Rohan’s mother is 26 years older than him. The product of their ages (in years) 3 years from now will be 360. We would like to find the Rohan’s age.

**(iv)** A train travels a distance of 480 km at a uniform speed. If the speed had been 8km/h less, then it would have taken 3 hours more to cover the same distance. We need to find the speed of the train.

**Answer – ***Solutions For Question Number 2 Is In The Video Below (Explained In Hindi) :-*

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