WAEC - Mathematics (2018 - No. 11)
Simplify; \(\frac{2 - 18m^2}{1 + 3m}\)
\(2 (1 + 3m)\)
\(2 (1 + 3m^2)\)
\(2(1 - 3m)\)
\(2(1 - 3m^2)\)
説明
\(\frac{2 - 18m^2}{1 + 3m}\) = \(\frac{2(1 - 9)m^2}{1 + 3m}\)
= \(\frac{2(1 + 3m)(1 - 3m)}{1 + 3m}\)
= \(2(1 - 3m)\)