WAEC - Mathematics (2011 - No. 6)
One of the factors of (mn - nq - n\(^2\) + mq) is (m - n). The other factor is?
(n - q)
(q - n)
(n + q)
(q - m)
Explanation
mn - nq - n\(^2\) + mq
mn - n\(^2\) - nq + mq
(mn - n\(^2\)) (mq - nq)
n(m - n) + q(m - n)
= (n +q) (m - n)
mn - n\(^2\) - nq + mq
(mn - n\(^2\)) (mq - nq)
n(m - n) + q(m - n)
= (n +q) (m - n)
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