Question

Find the roots of the following equations

(1) x(x − 3) = 0

(2) a(a + 5) = 0

(3) m² − 4m = 0

(4) 3k² + 6k = 0

(5) (y + 6) (y + 9) = 0

(6) (b − 3) (b − 5) = 0

(7) (2n + 1) (3n − 2) = 0

(8) (5z − 2) (7z + 3) = 0

Answer 1

(1)

This equation can be solved as:

Hence, the roots of the quadratic equation are

(2)

This equation can be solved as:

Hence, the roots of the quadratic equation are

(3)

This equation can be solved as:

Hence, the roots of the quadratic equation are

(4)

This equation can be solved as:

Hence, the roots of the quadratic equation are

(5)

This equation can be solved as:

Hence, the roots of the quadratic equation are

(6)

This equation can be solved as:

Hence, the roots of the quadratic equation are

(7)

This equation can be solved as:

Hence, the roots of the quadratic equation are

(8)

This equation can be solved as:

Hence, the roots of the quadratic equation are