Factorize the expression: am + bn - an - bm
MATHEMATICS
WAEC 2011
Factorize 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)
Correct Answer: B. (a - b)(m - n)
Explanation
am + bn - an - bm
am - an - bm + bn
a(m - n) - b(m - n)
(a - b)(m - n)
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