Factorize the expression: am + bn – an – bm

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Mathematics WAEC 2011

Factorize the expression: am + bn – an – bm

  • (a - b)(m + n)
  • (a - b)(m - n) checkmark
  • (a + b)(m - n)
  • (a + b)(m + n)

The correct answer is: B

Explanation

am + bn - an - bm

am - an - bm + bn

a(m - n) - b(m - n)

(a - b)(m - n)
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