Rein quadratische Gleichungen 4

5x²+4 = 24
5x²-9 = 11
3-5x² = -402
3-8x² = -125
4x²-5 = 319
2x²-3 = 69
7x²-2 = 341
4-8x² = -196
4-x² = -32
6x²+9 = 303
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