Odpowiedzi

2009-11-10T09:19:12+01:00
2x-(9-7)²-5X= 2x - (2)² - 5x = -3x - 4
9O-5+10(20-70)²= 85 + 10(-50)² = 85 + 10*2500 = 85 + 25000 = 25085
2009-11-10T09:35:12+01:00
2x-(9-7)²-5X=2x-4-5x=-3x-4
9O-5+10(20-70)²= 85+10*(-50)²=85+10*2500=85+25000=25085
2009-11-10T11:46:20+01:00

A)2x-(9-7)²-5X = 2x-4-5x = -3x-4

B)9O-5+10(20-70)² = 85+10*(-50)² = 85+10*2500 = 85+25000 = 25085