Factor by grouping: \[ r s+7 s^{2}-r-7 s \] SUBMIT ANSWER
Solución de inteligencia artificial de Upstudy
Responder
Solución
Respondido por UpStudy AI y revisado por un tutor profesional


Bonus Knowledge
To factor the expression \( r s + 7 s^{2} - r - 7 s \) by grouping, we can follow these steps: 1. Group the terms: \( (r s - r) + (7 s^{2} - 7 s) \). 2. Factor out the common factors in each group: - From the first group \( r s - r \), we can factor out \( r \), giving us \( r(s - 1) \). - From the second group \( 7 s^{2} - 7 s \), we can factor out \( 7 s \), giving us \( 7 s(s - 1) \). 3. Now our expression looks like this: \( r(s - 1) + 7 s(s - 1) \). 4. Notice that \( (s - 1) \) is a common factor: - So we can factor out \( (s - 1) \): \[ (s - 1)(r + 7 s). \] Thus, the factored form of the expression is: \[ (s - 1)(r + 7 s). \]
