Question

Simplifique: 7c-21/c²-6c+9

Answer 1

7c-21 = 7(c-3)
c^2-6c+9 = (c-3)^2

7c-21/c^2-6c+9 = 7(c-3)/ (c-3)^2

= 7(c-3)/ (c-3).(c-3) --> simplificando
= 7/ c-3

Answer 2

Resposta:

7c-21 = 7(c-3)

c^2-6c+9 = (c-3)^2

7c-21/c^2-6c+9 = 7(c-3)/ (c-3)^2

= 7(c-3)/ (c-3).(c-3) --> simplificando

= 7/ c-3

Explicação passo a passo: