Zapisz w jak najprostszej postaci :
a) (x+1)(x-2)+(x+2)(x-1)
b) (5k+n)(k-2n)-k(4k+n)
c) (4y+3)(y-2)-2y(4-2y)
d) -(3c-2)(c-1)-c(c-2)
e) 2(3a do potegi 2 -1)-(a+2)(a+2)
f) 5x (ten x do potegi 2) (x do pot 2 +1)-(x do pptegi 2 -2)(x do potegi2 -2)(x do 2 +3)
Proszę o rozwoazanie HELP!
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a)2x(do kwadratu) -x -4
b) k(do kwadratu) - 10kn - 2n(do kwadratu)
c) 8y(do kwadratu) -13y -6
d) 4c(do kwadratu) + 7c +1
heh dalej nie wiem