Question

calcule o valor de Delta nas seguintes equações
a)x²-2x+1=0
b)x²+5x+4=0​

Answer 1

Boa Noite !!!

1° Devemos encontrar os coeficientes.

a) coeficientes

$a = 1\\\\b = -2\\\\c = 1\\\\\Delta = b^{2} -4.a.c\\\\\Delta = (-2)^{2} -4.1.1\\\\\Delta = 0$

b) coeficientes

$a = 1\\\\b = 5\\\\c = 4\\\\\Delta = 5^{2} -4.a.c\\\\\Delta = 25-4.1.4\\\\\Delta = 25 - 16\\\\\Delta = 9$

Espero ter ajudado :-)

Att: LDC