Q1 of 168 Page 7

Write the discriminate of each of the following quadratic equation:
√3 x² — 2√2 – 2√3 = 0

d = b²– 4ac

d = (–2√2)² – 4 (√3) (–2√3)

d = 8 + 24

d = 32

Write the discriminate of each of the following quadratic equation:

2x² + 4x + 5 = 0

Write the discriminate of each of the following quadratic equation:

3x² + 5x + 6 = 0

Examine whether the following quadratic equations have real roots or not:

7x² + 8x — 1 = 0

Examine whether the following quadratic equations have real roots or not:

2x² + 3x + 4 = 0

Write the discriminate of each of the following quadratic equation:√3 x2 — 2√2 – 2√3 = 0