Zastosuj wzory skróconego mnożenia a) (2×-√2)²=4x²-4√2x+2 b) (3×+½)²=9x²+2*3x*½+(½)²=9x²+3x+¼ c) (1-⅓y)²=1-2*1*⅓y+(⅓y)²=1-⅔y+1/9y²
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b) 9x² + 3x + ¼
c) 1 - 2/3 y + 1/9y²
Zastosuj wzory skróconego mnożenia
a) (2×-√2)²=4x²-4√2x+2
b) (3×+½)²=9x²+2*3x*½+(½)²=9x²+3x+¼
c) (1-⅓y)²=1-2*1*⅓y+(⅓y)²=1-⅔y+1/9y²
b)(3x+1/2)²=9x²+3x+1/4
c)(1-1/3y)²=1-2/3y+1/9y²