Skip to content
OtisamLMS
Elective Mathematics

Elective Mathematics · Quick practice · answer shown after each question

Quadratic equations, roots and discriminant

Question 1 of 10

Question 1 of 10

The discriminant of ax² + bx + c = 0 is

Question 2 of 10

Question 2 of 10

The roots of x² − 5x + 6 = 0 are 2 and 3.

Question 3 of 10

Question 3 of 10

The sum of the roots of ax² + bx + c = 0 is

Question 4 of 10

Question 4 of 10

If the discriminant is zero, the equation has

Question 5 of 10

Question 5 of 10

The product of the roots of x² − 7x + 12 = 0 is ___

Question 6 of 10

Question 6 of 10

A quadratic equation has at most two roots.

Question 7 of 10

Question 7 of 10

The sum of the roots of x² − 6x + 8 = 0 is ___

Question 8 of 10

Question 8 of 10

Solve x² + 6x + 8 = 0.

Question 9 of 10

Question 9 of 10

A quadratic with discriminant zero touches the x-axis.

Question 10 of 10

Question 10 of 10

The product of the roots is

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.