wykonaj mnozenie i zredukuj wyrazy podobne
a) (2x+y) (x+2y)
b) (2x+y) (x-2y)
c) (a-2b) (a+2b)
d) (3n-2) (n-6)
e) (x+2y+3) (x-2)
f) (2a-b+c) (2a-3b)
g) (a+2b-3c) (2a-3b)
h) -4(x+3)(x-2)
i 2n(n-2m) (3+m)
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a) (2x+y) (x+2y)= 2x kwadrat + 5xy +2y kwadrat
b) (2x+y) (x-2y)= 2x kwadrat -3xy-2y kwadart
c) (a-2b) (a+2b)a kwadrat -2b kwadrat
d) (3n-2) (n-6)= 3n kwadrat -20n+12
e) (x+2y+3) (x-2)= x kwadrat +x+2xy-6
f) (2a-b+c) (2a-3b) = 4 a kwadrat -8ab +3b kwadart +2ac-3bc
g) (a+2b-3c) (2a-3b) = 2a kwadrat +ab -6b kwadrat -6ac+9bc
h) -4(x+3)(x-2)=4x kwadrat +4x-24
i 2n(n-2m) (3+m)= 6n kwadart +2n kwadart m-6nm-4nm kwadrat