Question

The number of points of intersection of the quadratic polynomial x² + 4x + 4 with the X axis is

Options

• 0

• 1

• 0 or 1

• 2

Answer 1

1

Explanation;

Hint:

(x + 2)² = 0 ⇒ (x + 2) (x + 2) = 0

x + 2 = 0 or x + 2 = 0 ⇒ x = – 2 or x = – 2

Number of points of intersection is 1 ...(both the values are same)