Question

qual a resposta de 1sobre 4 x²+5xsobre 4-6 sobre 1 =0

Answer 1

$\frac{1}{4}x^2 + \frac{5x}{4} - \frac{6}{1}=0$ -->mmc=4

x² + 5x - 24 = 0 
Δ= 25 +96 = 121
√Δ= ±√121= ±11

x' = (-5-11)/2= -8
x"= (-5+11)/2= 3

S = (-8 , 3)