( 12345679 x 72 ) = ?
"explanation : 12345679 x 72 = 12345679 x ( 70 + 2 ) = 12345679 x 70 + 12345679 x 2 = 864197530 + 24691358 = 888888888 answer : option b"
multiply(12345679, power(add(const_4, const_1), const_4))