WAEC - Mathematics (2003 - No. 27)
Evaluate \((111_{two})^2 - (101_{two})^2\)
10two
100two
1100two
11000two
Paskaidrojums
\((111_{2})^2 - (101_{2})^2\)
Difference of two squares
\((111 - 101)(111 + 101)\)
= \((10)(1100)\)
= \(11000_{2}\)
\((111_{2})^2 - (101_{2})^2\)
Difference of two squares
\((111 - 101)(111 + 101)\)
= \((10)(1100)\)
= \(11000_{2}\)