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Core Mathematics

Core Mathematics · Quick practice · answer shown after each question

Quadratic equations

Question 1 of 10

Question 1 of 10

The quadratic formula gives x =

Question 2 of 10

Question 2 of 10

Find the sum of the roots of x² − 3x − 10 = 0.

Question 3 of 10

Question 3 of 10

The roots of x² − 9 = 0 are

Question 4 of 10

Question 4 of 10

Solve x² − 13x + 40 = 0.

Question 5 of 10

Question 5 of 10

If b² − 4ac = 0, the equation has

Question 6 of 10

Question 6 of 10

The quadratic equation whose roots are 2 and 5 is

Question 7 of 10

Question 7 of 10

Solve 2x² − 7x + 2 = 0 using the quadratic formula, giving your answers correct to 2 decimal places. State the nature of the roots.

Question 8 of 10

Question 8 of 10

The discriminant of 3x² + 4x − 6 = 0 is ___.

Question 9 of 10

Question 9 of 10

Find the quadratic equation whose roots are 5 and 4.

Question 10 of 10

Question 10 of 10

Solve x² − 7x + 2 = 0 using the quadratic formula, giving your answers correct to 2 decimal places. State the nature of the roots.

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