Question 28
Algebraic ExpressionsFactorize the expression am + bn − an − bm.
- A.(a − b)(m + n)
- B.(a − b)(m − n)
- C.(a + b)(m − n)
- D.(a + b)(m + n)
Show the answer and explanation
Answer: B ((a − b)(m − n))
Explanation
Group: am − an − bm + bn = a(m − n) − b(m − n) = (a − b)(m − n).