U
UPUUDULDU.
a) (x - 1)(x + 3)(x - 2)(x2 + 1) = 0;
6) (x2 - 5x + 6)(x2 + 5x + 6) = 0;
B) (x2 + 2x - 3)(–2x2 + 5x - 2)2 0;
r) (x + 2)²(x + 5)(x - 1)(x + 4) > 0.
119
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