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IIT JEE/AIPMT
Engineer Your Education to Success with a Group Exclusive of
NITIANS.
D-8 Koel Nagar Rourkela
DPP-1 Quadratic Equations
1] Solve the following:-
A] x 2 + x – 4 = 0 B] x 2 – 3x – 4 = 0 C] x 2 – 4 = 0 D] (x – 2) 2 – 12 = 0
2] The equation 5x
2
+ 3x + p has a repeated root, find the value of p.
3] Find the coordinate of the vertex of the curve y = x 2 + 2x + 3.
4] Sketch the graph of y = x
2
- x - 6 = 0. Also find the coordinate of highest and lowest point on this
curve.
5] If the roots of a quadratic equation are 20 and -7, then find the equation?
6] If the roots of the equation 2x
2
- 5x + b = 0 are in the ratio of 2:3, then find the value of b?
7] The sum of the squares of two consecutive positive integers exceeds their product by 91. Find the