Question

Q.

____________________________________
[tex] \\ \\ \\ [/tex]
Sederhanakanlah :

a. 3(a + b) = ..
b. (3x)³ = ..
[tex] \\ \\ \\ [/tex]

____________________________________
[tex] \\ \\ \\ [/tex]
gut​

Answer 1

A

Cara mengerjakan

[tex]x(a + b) = (x \times a) + (x \times b)[/tex]

maka

[tex]3(a + b) = (3 \times a) + (3 \times b) \\ 3a + 3b[/tex]

B

Cara mengerjakan

[tex](xy) {}^{a} = {x}^{a} {y}^{a} [/tex]

maka

[tex](3x) {}^{3} \\ {3}^{3} {x}^{3} \\ (3 \times 3 \times 3) {x}^{3} \\ (9 \times 3) {x}^{3} \\ 27 {x}^{3} [/tex]

Answer 2

Verified answer

Jawaban ↓

a.

x ( a + b ) = ( x × a ) + ( x + b )

3 ( a + b ) = ( 3 x a ) + ( 3 x b )

= 3a + 3b

b.

( 3x )³ = 3x × 3x × 3x

= 9x × 3x

= 27x³