Question

-x²+x+12=0 me ajudem porfavor​

Answer 1

Resposta:

multiplica -1

x^-x-12=0

delta=(-1)^-4a.c

delta=1-4×1×-12

delta=49

delta = r 49

delta=7

×=-b+ - raiz/2

×=1+ -49/2

×=1+ -7/2

×1=1+7/2

×1=8/2

×1=4

×2=1-7/2

×2= -6/2

×2=-3

solução (4,-3)