Erweitern: \( 300 - 40x - 30x + 4x^2 = 240 \) → \( 4x^2 - 70x + 300 = 240 \) → \( 4x^2 - 70x + 60 = 0 \).

Fri, 17 Apr 2026 20:59:31 +0000

Content under review