WAEC - Mathematics (1999 - No. 14)
Simplify \(\frac{2-18m^2}{1+3m}\)
\(2(1+3m)\)
\(2(1+3m^2)\)
\(2(1-3m)\)
\(2(1-3m^2)\)
คำอธิบาย
\(\frac{2-18m^2}{1+3m}=\frac{2(1-(3m)^2)}{1+3m}\\
\frac{2(1-(3m)(1+3m)}{1+3m}=2(1-3m)\)
\(\frac{2-18m^2}{1+3m}=\frac{2(1-(3m)^2)}{1+3m}\\
\frac{2(1-(3m)(1+3m)}{1+3m}=2(1-3m)\)