Multiple choice The roots of the quadratic equation (2x - 3)(x + 2) = 3x + 9 are 1 + 31 2 , 1 − 31 2 -12 and − 7 2 3 2 and -2 1 and − 3 7 1 + 30 7 a n d 1 − 30 7 Reveal answer Fill a bubble to check yourself A Correct answer Explanation Expanding and rearranging gives 2x^2 - 2x - 15 = 0. Applying the quadratic formula gives roots (1 + sqrt(31))/2 and (1 - sqrt(31))/2.