Question

1- $(a+b)^{3}$


2- $\frac{3}{4}n (8p - 6a - 4x)$


3- $12n -6p (a + b + c)$

Answer 1

Respuesta:

1-. (a + b)³

(a + b) (a² +2ab + b²)

a(a² + 2ab + b²) + b(a² + 2ab + b²)

a³ + 2a²b+ ab² + b(a² + 2ab + b²)

a³ + 2a²b + ab² + ba² + 2b²a + b³

a³ + (2a²b + a²b) + (ab² + 2ab²) + b³

a³ + 3a²b + 3ab² + b³

2-. 3/4n (8p - 6a - 4x)

3n (8p - 6a - 4x) / 4

3n × 2(4p - 3a - 2x) / 4

6n(4p - 3a - 2x) / 4

3n(4p - 3a - 2x) / 2

3-. 12n - 6p(a + b + c)

6{12n/6 + -6p(a + b + c)/6}

6(2n - p(a + b + c))