Hi... I need help with some excersises:

1) Solve x2 – 3x = –8

Opt. A)

Opt. B)

Opt. C) Opt. D)

2) Solve –3x2 – 4x – 4 = 0

Opt. A)

Opt. B)

Opt. C) Opt. D)

3) Solve x2 + 4x + 8 = 0

A)

B)

C) D)

4) Solve 3x2 = –12x – 15

A) x = –4 ± 2

B) x = –4 ±

C) x = –2 ± 2 D) x = –2 ±

5) Solve –3x2 + 30x – 90 = 0

A)

B)

C) D)