Question

equação do 2 grau fórmula de bhaskara
4x²+19x-30

Answer 1

4x²+19x-30=0

a=4. b=19. c=-30

∆=b²-4.a.c
∆=19²-4.4.(-30)
∆=361-16.-30
∆=361+480
∆=841

x1/2=(-b±√∆)/2a
x1/2=(-19±√841)/2.4
x1/2=(-19±29)/8


x1=(-19+29)/8
x1=10/8 =5/4

x2=(-19-29)/8
x2=-48/8
x2=-6