1)
What are "Metivei Tza'ad"?
1.
Rashi: They succeed with their strength.
2.
Malbim (Derech ha'Muskal): They go in the way of the Mitzvos.
3.
Malbim (Derech ha'Pashut): This begins a Mashal about Alkum, the slave who became king. He was not a Gibor, nor a man of strategies who knows to trick the nation with his guile. Rather, he was like a male goat that goes at the head of a herd of females. So he overpowered via his wife, for he was her husband.
2)
What is "Metivei Laches"?
1.
Malbim (Derech ha'Muskal): He goes in the way of investigation and attaining truths.
2.
Malbim (Derech ha'Pashut): Refer to 30:29:1:3.