zad1
a)4ab-7cb
b)m²-m
c)x-4x²
d)x²y+xy
e)-30xy-2x
f)-2ax+6ay
g)ax-bx
h)3b²-3b
i)5x²+x
j)6x²y-2xy²
k)8x³+2x²-4x
zad2
a)x(2a-3b)+2x(2a-3b)
b)2a(4x+y)-(y+4x)a
c)3x(3a-2b)+5x(3a-2b)
d)14x(a-4b)-(a-4b)
e)(3x+2y)+2(2y+3x)+(3x+2y
f)8x(2a-3b)+6x(2a-3b)-(2a-3b)
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zad.1
a) 4ab-7cb=b(4a-7c)
b) m^2-m=m(m-1)
c) x-4x^2=x(1-4x)
d) x^2y+xy=xy(x+1)
e) -30xy-2x=-2x(15y+1)
f) -2ax+6ay=-2a(x-3y)
g) ax-bx=x(a-b)
h) 3b^2-3b=3b(b-1)
i) 5x^2+x=x(5x+1)
j) 6x^2y-2xy^2=2xy(3y-y)
k) 8x^3+2x^2-4x=2x(4x^2+x-2)
Zad.2
a) x(2a-3b)+2x(2a-3b) = (x+2x)(2a-3b) = 3x(2a-3b)
b) 2a(4x+y)-(y+4x)a = (2a-a)(4x+y)=a(4x+y)
c) 3x(3a-2b)+5x(3a-2b)=(3x+5x)(3a-2b) = 8x(3a-2b)
d) 14x(a-4b)-(a-4b) = (14x-1)(a-4b)
e) (3x+2y)+2(2y+3x)+(3x+2y)=4(3x+2y)
f) 8x(2a-3b)+6x(2a-3b)-(2a-3b) = (14x-1)(2a-3b)