Question

which of the following is not a factor of 12a2b + 15ab2. A) a B) b C) 4a+5b. D) 4a-5b​

Answer 1

Answer:

Option (D), 4a - 5b

Step-by-step explanation:

Now, 12a^2 b + 15ab^2

= (3 * 2 * 2 * a * a * b) + (3 * 5 * a * b * b)

= (3 * a * b) {(2 *2 * a) + (5 * b)}

= 3ab (4a + 5b)

This shows that a, b and (4a + 5b) are factors of the given expression.

From the given options in the problem, we can conclude that (4a - 5b) is not a factor of the given expression.

Note:

To make the solution easier, expand the exponentials. Then take the commons out. We may get our required solution there.

Answer 2

Step-by-step explanation:

which of the following is not a factor of 12a2b + 15ab2. A) a B) b C) 4a+5b. D) 4a-5b