Step-by-step explanation:
2x² - 14 + 24 =0
2x² - 8x - 6x + 24 =0
2 x ( x - 4 ) - 6 ( x - 4 ) = 0
2 ( x - 4 ) ( x - 3 ) = 0
x - 4 = 0 x - 3 = 0
x = 4 x = 3