Answer :
well im using desmos graphing calculator and i got -3.5, 0 and 0.5,0
(4x - 2) · 6(2x + 7)
(6x - 2) · 6(2x) + 6(7)
(6x - 2)(12x + 42)
72x² + 252x - 24x - 84
72x² + 228x - 84
(6x - 2) · 6(2x) + 6(7)
(6x - 2)(12x + 42)
72x² + 252x - 24x - 84
72x² + 228x - 84