Q3 of 24 Page 87

Find the roots of the following equations:

(i)


(ii)

(i)


=


According to the quadratic formula;


=


So, the roots are,


=


∴ The roots are =


(ii)


=


=


=


=


According quadratic equation


=


=


=


More from this chapter

All 24 →
1

Find the roots of the following quadratic equations, if they exist, by the method of completing the square:

(i)


(ii)


(iii)


(iv)

2

Find the roots of the quadratic equations given in Q.1 above by applying the quadratic formula.

 4

The sum of the reciprocals of Rehman’s ages, (in years) 3 years ago and 5 years from now isFind his present age.

 5

In a class test, the sum of Shefali’s marks in Mathematics and English is 30. Had she got2 marks more in Mathematics and 3 marks less in English, the product of their marks would have been 210. Find her marks in the two subjects.