Chapter 5 - Quadratic Equations Exercise Ex. 5(E)

Question 1

Solve: 

Solution 1

Question 2

Solve: (2x+3)²=81

Solution 2

Question 3

Solution 3

Question 4

Solution 4

Question 5

Solution 5

Question 6

Solution 6

Question 7

Solution 7

Question 8

Solution 8

Question 9

Solution 9

Question 10

Solution 10

Question 11

Solution 11

Question 12

Solve each of the following equations, giving answer upto two decimal places.(i)x² - 5x -10=0(ii) 3x² - x - 7 =0

Solution 12

Question 13

Solution 13

Question 14

Solve :

(i)x² - 11x - 12 =0; when x N

 

(ii)x² - 4x - 12 =0; when x I

 

(iii)2x² - 9x + 10 =0; when x Q

Solution 14

Question 15

Solution 15

Question 16

Solution 16

Question 17

Solution 17

Question 18

Solution 18

Question 19

Solution 19

Question 20

Without solving the following quadratic equation, find the value of 'm' for which the given equation has real and equal roots.

Solution 20

Consider the given equation: