Factorize the expression am bn - an - bm - WAEC Mathematics 2011 Question
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 option: b
am + bn - an - bm
am - an - bm + bn
a(m - n) - b(m - n)
(a - b)(m - n)
am - an - bm + bn
a(m - n) - b(m - n)
(a - b)(m - n)
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