Question

Which statements about the factors of the terms in the expression 20a+15ab+ 24b are true? Select three options.

The factors common to 20a and 15ab are 1,5, a, and b.
The factors common to 20a and 15ab are 1, 5, and als
The factors common to 20a and 24b are 1, 2, and 4
The GCF of the expression is ab
The GCF of the expression is 1

Answer 1

• B, C, E

Explanation:

Given the expression:

• 20a + 15ab + 24b

Answer options:

The factors common to 20a and 15ab are 1,5, a, and b

• False. b is not a common factor

The factors common to 20a and 15ab are 1, 5, and a

• True

The factors common to 20a and 24b are 1, 2, and 4

• True

The GCF of the expression is ab

• False. ab is a factor of one of the terms only.

The GCF of the expression is 1

• True