Answer:
decimal
x = 5.284 or 0.284
fraction
x = (21.136) / 4 or (1.136) / 4
Step-by-step explanation:
2x² - 10x - 3 = 0
x = [-b ± √b² - 4(a)(c)] / 2(a)
x = {-(-10) ± √[(-10)² - 4(2)(-3)]} / 2(2)
x = [10 ± √(100 + 24)] / 4
x = (10 ± √124) / 4
x = (10 ± 11.136) / 4
x = (21.136) / 4 or (1.136) / 4
x = 5.284 or 0.284
