Question

Which is the correct solution set for 4x^2 +4x -3 = 0?

(1) {2,-3}

(2) {1/2, -3}

(3) {1,2}

(4) {1/2, -3/2}

Answer 1

4x^2 + 4x - 3 = 0
(2x + 3)(2x - 1) = 0

2x + 3 = 0
2x = -3
x = -3/2

2x - 1 = 0
2x = 1
x = 1/2

Answer: (4) {1/2, -3/2}