zad 3
wykonaj mnożenie
a)4x(x-1)=
b)2,5x(a-2b+3c)=
c)-6x(xy+3y-4x)=
d)-3x(2xdo kwadratu-4+3,5y)=
e)1.2x(ado kwadratu+5b-2c)=
f-jedna drugax(-3+6xy-8x)=
g)4x(x do potegi trzeciej -2x do potegi drugiej+3x-4)
zad 4
a)5(x-7y+4)=
b)3x(x-9y-11)
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a) 4x(x-1) = 4x²-4x
b) 2.5x(a-2b+3c) = 2.5ax-5bx+7.5cx
c) -6x(xy+3y-4x) = -6x²y-18xy+24x²
d) -3x(2x²-4+3.5y) = -6x³+12x-10.5xy
e) 1.2x(a²+5b-2c) = 1.2a²x+6bx-3cx
f) -1/2x(-3+6xy-8x) = 1.5x-3x²y+4x²
g) 4x(x³-2x²+3x-4) = 4x^4-8x³+12x²-16x
4x^4 oznacza 4x do potegi czwartej
Zad.4
a) 5(x-7y+4) = 5x-35y+20
b) 3x(x-9y-11) = 3x²-27xy-33x