Need Algebra help (QUICK)

1. Which of the following methods would be the easiest to use to solve x2 – 6 = 0?

factoring

isolating the x2 term and finding the square root of both sides

using the quadratic formula

all three methods would be easy and effective

2. Which of the following methods would be the easiest to use to solve 2×2 + 5x – 11 = 0?

factoring

isolating the x2 term and finding the square root of both sides

using the quadratic formula

all three methods would be easy and effective

3. Which of the following methods would be the easiest to use to solve x2 + 6x – 7 = 0?

factoring

isolating the x2 term and finding the square root of both sides

using the quadratic formula

all three methods would be easy and effective

5. Which equation would be the best to solve by completing the square?

x2 = 36

x2 + 11x = 40

3×2 + 4x = –2

x2 + 8x = 20