DAjeee Naaaajj Znowu wyrazenia algebraiczne rozwiazcie pilsss.
2/5 x (-5 - 1/4 x 1/2) do kwadratu=
2/3 do kwadratu +4 x 2/3 - 2/3 +8
uratujcie mniee plisss!!!
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2/5x(-5-1/4x1/2)²=2/5x(-5-1/8)²=2/5x(-5 1/8)²=2/5x(-41/8)²=2/5x1681/64=
1681/160=10 81/160≈10,5
(2/3)²+4x2/3-2/3+8=2/3x2/3+4x2/3-2/3+8=4/9+8/3-2/3+8=4/9+6/3+8=
4/9+2+8=10 4/9