Explain why 186,426 is divisible by both 3 and 9.

We will use divisibility criteria.

So, to find out if 186,426 is divisible by both 3 and 9, we first compute the sum of its digits. We have

Given that 27 is a multiple of 3 and 9, we conclude that 186,426 is divisible by both 3 and 9.  

the correct answer option is (2x-3)(2x+3).

step-by-step explanation:

we are given the following expression and we are to factorize it:

we are to find such factors that when multiplied they give a result of 36 (9 x 4 = 36) and when added they give a result of 0.

the two such factors of 36 are negative six and postive six.

factorizing the given expression to get:

therefore, the correct factorization of is (2x-3)(2x+3).