Question

The expression 9b+21 factored using gcf

Answer 1

Answer:

3(3b + 7)

Step-by-step explanation:

$9b+21=(3)(3b)+(3)(21)=(3)(3b+7)\\\\\text{used the distributive property:}\ a(b+c)=ab+ac$

Answer 2

Expressions can be split into equivalent expressions by factoring them.

The expression equivalent to $\mathbf{9b + 21}$ is $\mathbf{3 (3b + 7)}$

The expression is given as:

$\mathbf{9b + 21}$

Express each term as a product of 3 (the GCF)

$\mathbf{9b + 21 = 3 \times 3b + 3 \times 7}$

Factor out 3

$\mathbf{9b + 21 = 3 (3b + 7)}$

Hence, the expression equivalent to $\mathbf{9b + 21}$ is $\mathbf{3 (3b + 7)}$

Read more about equivalent expressions at:

https://brainly.com/question/15715866