Question

resolva
observação tem que ter delta e baskara
${3x } ^{2} - 7x + 2 = 0$

Answer 1

A = 3 B= -7 C = 2

Δ=b² - 4 * a * c

Δ= (-7)² - 4 * 3 * 2

Δ=49-24

Δ= 25

x=(-b+- √ Δ) / 2 * a

x = -(-7) +- √25) / 2*3

x = (7 +- 5) / 6

x' = (7 + 5) / 6

x' =12/6

x' = 2

x" = (7 - 5) / 6

x' =2/6

s={ 2/6 , 2 }