The table below presents an aligned extract of verses or verselets in Ex32-18a Both verses/verselets discuss God losing his temper on the Jews because of the golden calf sin. The alignment justifies the Rashi comment that: Moses asked God: For what end will you lose your temper if the Jews are worshipping idols; the idols can't do anything and sooner or later the Jews will find out (without your losing your temper) that they made a mistake.

Verse	Text of Verse	Rashi comment
Ex32-18a	To what end, God, should your temper flare at your nation... Why should Egypt say He took them out in evil to kill them.	Moses asked God: For what end will you lose your temper if the Jews are worshipping idols; the idols can't do anything and sooner or later the Jews will find out (without your losing your temper) that they made a mistake.
Ex32-18a	To what end, God, should your temper flare at your nation... Why should Egypt say He took them out in evil to kill them.

Advanced Rashi: The above analysis is based on the translation distinction:
• The Hebrew La-mah means to what end
• The Hebrew Lam-mah means why.
This distinction between La-mah with the accent on the terminal syllable vs. Lam-mah with the accent on the initial syllable as meaning to what end and why respectively with an emphasis on the future (to what end) vs. the past (why), was introduced by Rabbi Hirsch. Consequently Rashi as understood by Rabbi Hirsch sees difference in meaning between these two similar words, in contrast to the Raddack who sees the two words as meaning the same thing. This controversy is in fact part of a general pattern of controversy between Rashi and other Rishonim: Rashi in general is more nuanced in his translations and will see meaningful distinctions which can be neatly mirrored in punchy English translations.