Question

Desenvolva:

a) (x+1) elevado a 3

b) (2a+3) elevado a 3

c) (1-x) elevado a 3

d) ( 3a-2) elevado a 3

Answer 1

a) (x+1)³ = (x+1)(x+1)(x+1)=x³+3x²+3x+1

b) (2a+3)³=(2a+3)(2a+3)(2a+3)= 8a³+36a²+54a+27

c) (1-x)³= (1-x)(1-x)(1-x)=-x³+3x²-3x+1

d) ( 3a-2)³=( 3a-2)( 3a-2)( 3a-2)=27a³-54a²+36a-8

Answer 2

a) (x+1)³ =
(x+1)(x+1)(x+1)=
x³+3x²+3x+1

b) (2a+3)³=
(2a+3)(2a+3)(2a+3)=
8a³+36a²+54a+27

c) (1-x)³=
(1-x)(1-x)(1-x)=
-x³+3x²-3x+1

d) ( 3a-2)³=
( 3a-2)( 3a-2)( 3a-2)=
27a³-54a²+36a-8