December 2018 2 7 Report
1. Iloczyn (4x+5)(6-x) jest równy:
A. -4x ^{2} +19x+30
B. 4x ^{2} +9x+30
C. -4x ^{2} +9x+30
D. -4x ^{2} +9x-30

2. Wartość wyrażenia (x+5)(2x-4) dla x=-1 wynosi:
A. 12
B. 24
C. -12
D. -24

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