Odpowiedzi

2009-11-29T12:37:03+01:00
A) (3x + 5y)= 9x² + 30xy + 25y²
b) (5 - xy²)²= 25 - 50x²y⁴ + x²y⁴
c) (2 1/5 -y)(2 1/5 +y)= 4.84 - y²
2009-11-29T12:37:30+01:00
A) (3x + 5y)² =9x²+15xy+25y²
b) (5 - xy²)² =25-10xy²+x²y4
c) (2 1/5 - y)(2 1/5 + y) =4,84-y²
1 1 1
2009-11-29T12:44:56+01:00
A)=9x²+30xy+5y²
b)=10-5xy⁴+2xy⁴
c)=4¹/₂₅+2¹/₅y-2¹/⁵y-y²=4¹/₂₅-y²