Question

ME AJUDEM PFVR

-2x²+4x-6=0​

Answer 1

Resposta:

x= -b +- raiz de delta / 2a

delta= 4² -( 4. (-2) . (-6))

16 - (- 48) = 64

x¹ = -4 + 8 / -4

4/-4 = -1

x² = -4-8 / -4

-12/-4 = 3

x = {-1, 3}