Find the solutions of the following quadratic equations using the indicated method. a. using extracting square roots
1. x2 = 81
2. 4x2 = 121
b. using factoring
1. x2 - 10 + 25 = 0
2. 4x2 - 16 = 0
3. x2 + 3x - 10 = 0
c. using completing the square
1. x2 + 2x - 8 = 0
2. x2 - 10x = -9
d. using quadratic formula
1. x2 + 4x - 5 = 0
2. 2x2 - 3x = 5
1. x2 = 81
2. 4x2 = 121
b. using factoring
1. x2 - 10 + 25 = 0
2. 4x2 - 16 = 0
3. x2 + 3x - 10 = 0
c. using completing the square
1. x2 + 2x - 8 = 0
2. x2 - 10x = -9
d. using quadratic formula
1. x2 + 4x - 5 = 0
2. 2x2 - 3x = 5