Question

4x²-33x+8=0 me ajudem preciso agora por favor

Answer 1

Δ= (-33)² - 4 . 4 . 8
Δ= 1089 - 128
Δ= 961

x= 33 ± 31 / 8
x'= 64/8 = 8
x"= 2/8 (÷2) = 1/4


S={ 8 , 1/4 }

Answer 2

4x² - 33x + 8 = 0


a = 4

b = (- 33)

c = 8


∆ = b² - 4ac

∆ = (- 33)² - 4 × 4 × 8

∆ = 1089 - 128

∆ = 961


x = - b ± √∆ /2a

x = - (- 33) ± √961 /2 × 4

x = 33 ± 31 /8


x¹ = 33 + 31/8 = 64/8 = 8

x² = 33 - 31/8 = 2/8 (÷ 2) = 1/4


S = {1/4, 8}