Respuesta :

Answer:

-12

12

Step-by-step explanation:

(-3) * 4

Remove parentheses. ( -a) = -a

= -3 * 4

Multiply the numbers: 3 * 4 = 12

= -12

(4) * 3

Multiply the numbers.

4 * 3 = 12

= 12

Answer:

(-3)× 4 = -12

4 × 3= 12

Step-by-step explanation:

The first expression is

[tex](-3)\cdot4[/tex]

We can write -3 = -1 × 3

[tex](-1\cdot3)\cdot4[/tex]

Apply associative property of multiplication

[tex]-1\cdot(3\cdot4)[/tex]

Multiply 3 and 4

[tex]-1\cdot(12)\\\\=-(1\cdot12)[/tex]

Finally, simplify by multiplying the numbers

[tex]=-12[/tex]

The Second expression is

4 × 3

= 12

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