Answer:
3(5a+4)
Explanation:
Firstly, find the highest common factor between 15a and 12, which is 3 and write it in brackets, which is:
The brackets are 5a+4 because 3×5a=15a and 3×4=12, which gives you the algebraic expression 15a+12
3(5a + 4)
Given expression: 15a + 12
The common factor for both is 3.
Factorize:
=> 3(5a) + 3(4)
Take out the common factor: (3)
=> 3(5a + 4)
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