Factor. 9st - 9s + 5t - 5 ______

Group Terms: Group terms that have common factors. We can group the terms as follows: (9st - 9s) + (5t - 5).Factor Common Factors: Factor out the common factors from each group. From the first group (9st - 9s), we can factor out 9s, resulting in 9s(t - 1). From the second group (5t - 5), we can factor out 5, resulting in 5(t - 1).Write Factored Expression: Write the expression with the factored groups. The expression now looks like this: 9s(t - 1) + 5(t - 1).Factor Common Binomial: Factor out the common binomial factor. Both groups contain the common binomial factor (t - 1), so we can factor this out. The factored expression is (t - 1)(9s + 5).

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Q. Factor.

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9st - 9s + 5t - 5

Group Terms: Group terms that have common factors. $\newline$ We can group the terms as follows: $9st - 9s$ + $5t - 5$ .
Factor Common Factors: Factor out the common factors from each group. $\newline$ From the first group $9st - 9s$ , we can factor out $9s$ , resulting in $9s(t - 1)$ . $\newline$ From the second group $5t - 5$ , we can factor out $5$ , resulting in $5(t - 1)$ .
Write Factored Expression: Write the expression with the factored groups. $\newline$ The expression now looks like this: $9s(t - 1) + 5(t - 1)$ .
Factor Common Binomial: Factor out the common binomial factor. $\newline$ Both groups contain the common binomial factor $(t - 1)$ , so we can factor this out. $\newline$ The factored expression is $(t - 1)(9s + 5)$ .