Question

Elimina los signos de agrupación de la expresion siguiente -3[2b-4{b+3(-2b+c)}]

El resultado es:

A.36c+66b
B.36c-66b
C.66c-66b
D.66c+36b

Answer 1

-3[2b-4{b+3(-2b+c)}]

= -3 [2b-4 {b-6b+3c}]
= -3 [2b-4b+24b-12c]
= -6b+12b-72b+36c
= -66b+36c
= 36c-66b

Resp: B