Question

a equacao do 2°grau x elevado a 2 +3X=0

Answer 1

x²+3x=0
a=1 b=3 c=0
Δ=b²-4ac
Δ=(3)² - 4.(1).(0)
Δ=9-0
Δ=9

x'= -b + √Δ/2a⇒ x'= -(3) + √9/2⇒ -3 + 3/2 = 0/2= 0
x"= -b - √Δ/2a⇒ x"= -(3) - √9/2⇒ -3 -3/2 = -6/2 = -2