Question

Help me answer this please

Answer 1

$66 = (2x - 1) \times (x - 1) \\ 66 = 2 {x}^{2} - 3 + 1 \\ 65 - 2 {x}^{2} + 3x = 0 \\ - 65 + 2 {x}^{2} - 3x = 0 \\ 2 {x}^{2} + 10x - 13x - 65 = 0 \\ 2x \times (x + 5) - 13 \times (x + 5) = 0 \\ (x + 5) \times (2x - 13) = 0 \\ \\ x + 5 = 0 \\ 2x - 13 = 0 \\ \\ x = - 5 \\ x = \frac{13}{2}$