Question 19
Algebraic ExpressionsWhich of the following is a factor of rs + tr − pt − ps?
- A.(p − s)
- B.(s − p)
- C.(r − p)
- D.(r + p)
Show the answer and explanation
Answer: C ((r − p))
Explanation
Group: r(s + t) − p(t + s) = (s + t)(r − p). So r − p is a factor.