Question

I.
Factorise the following expressions completely.
1) 3x + 12 ​

Answer 1

Answer:

3x + 12

Taking 3 as common

3 ( x + 4 )

Answer 2

Step-by-step explanation:

3+12

3x+123x+12

Grouping

1

Common factor

3+12

{\color{#c92786}{3x+12}}3x+12

3(+4)

{\color{#c92786}{3(x+4)}}3(x+4)

Solution

3(+4)

Factor 3x – 12.

The first term, the 3x, can be factored as (3)(x); the second term, the 12, can be factored as (3)(4). The only factor common to the two terms (that is, the only thing that can be divided out of each of the terms and then moved up in front of a set of parentheses) is the 3.