Question

Qual a soma da conta 3 x ao quadrado menos 12

Answer 1

Resposta:

3x^2-12x=0

delta=b^2-4ac

delta=(-12)^2-4.3.0

delta=144-0

delta=144

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

x=-(-12)-12/2.3

x=12-12/6

x=0/6

x=0

x=-(-12)+12/2.3

x=12+12/6

x=24/6

x=4