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2. 2*-2(-2²-5)= -4(4-5)= -4*-1= 4
Mam nadzieje ze pomoglam:)
2. -4(4 - 5) = -4 * (-1) = 4
2. 2x-(x²-5)
2* -2 - (-2)² + 5
2* -2 - 4+5
4-4+5=5