Question

3x²+7x-6=0 resolver​

Answer 1

Resposta :

S={(-3 , 2/3)}

Explicação passo-a-passo:

3x²+7x-6=0

a=3

b=7

c=-6

∆=b²-4.a.c

∆=(7)²-4.(3).(-6)

∆=49+72

∆=121

x'=[-(+7)+√121]/2.(3)

x'=[-7+11]/6

x'=4/6

x'=(4÷2)/(6÷2)

x'=2/3

x"=[-(+7)-√121]/2.(3)

x"=[-7-11]/6

x"=[-18]/6

x"= -3