Mathematics
Senior High
Resolved
なぜ青ペンで書いたような答えになるのか教えてほしいです
(✓ (^_~) (^_b) (x_c)
= (k² -able +ab) (h_c)
(1
-
k³ - abre² + able - ch²+ abck-abc
k³ + (ab-cta² + (ab-abclk - abc
- (a+b+c) k² + (ab+be+cala
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ありがとうございます🙏✨