Question

Factorise 3k+12 with explanation step by step ​

Answer 1

3(k+4)

Explanation:

As the common factor between 3k and 12 is 3.

so 3 goes infront of the open bracket. 3×K =3K and 3×4=12

so k+4 goes inside the brackets.

Answer 2

3(k+4)

Explanation:

3k and 12 have a common factor of 3

factor 3 out of the two values

3(k+4)

you can check by multiplying everything in the brackets by 3

3xk =3k

3x4=12