Factorize the expression x(a - c) + y(c - a)
MATHEMATICS
WAEC 1995
Factorize the expression x(a - c) + y(c - a)
- A. (a - c)(y - x)
- B. (a - c)(x - y)
- C. (a + c)(x - y)
- D. (a + c)(x + y)
Correct Answer: B. (a - c)(x - y)
Explanation
x(a - c) + y(c - a)
= x(a - c) - y(a - c)
= (x - y)(a - c)
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