Question

equações do 2 grau sendo u=4   3x2-7x+2=0

Answer 1

3x² - 7x +2=0
Δ=b²-4ac
Δ= (-7)² - 4.3.2
Δ=49 - 24
Δ=25

x= -b +/- √Δ / 2a
x= - (-7) +/- √25 / 2.3
x'= $\frac{7+5}{6}$
x'=$\frac{12}{6}$
x'= 2

x''= $\frac{7-5}{6}$
x''= $\frac{-2}{6}$