How do you answer this im very confused

Solve each equation by extracting the square roots.
1. x² = -31
2. (x - 6)² - 7 = 0
3. 5x² - 1 = 4
4. 36 = x² - 4
5. (2x + 1)² = 121

Find the roots of the following equations.
1. (x + 1) (x + 2) = 0
2. x(x - 3) = 0
3. 4x(x + 5) = 0
4. (3x - 4)(2x + 3) = 0
5. (5x + 1)(14x + 7) = 0

Determine the solution set of each quadratic equation.
1. x² = 8
2. 3 = 12x²
3. 2x² = 32
4. -(x + 1)² = -81
5. 54 = 6(2x - 1)²