Odpowiedzi

2010-01-12T22:54:09+01:00
A)9x²-12xy+4y²
b)x²-8xy+16y²
c)36x²-12xy+1
d)16x²+48xy+36y²
e)4x²-4x+1
f)27x³-54x²y+36xy²-8y³
g)-27x³+54x²-36x+8
h)-125x³-150x²y-60xy²-8y³
i)-27x³-189x²-441x-343
j)(x-2y)(x+2y)
k)(5x-4y)(5x+4y)
l)(6x-y)(6x+y)
ł)(2x-1)(4x²+2x+1)
m)(5x-3y)(25x²+15xy+9y²)
n)(4x+2y)(16x²-8xy+4y²)
o)(6x+y)(36x²-6xy+y²)
p)36x²-12x+1-2(x²-9)=36x²-12x+1-2x²+18=34x²-12x+19
r)x³+6x²+12x+8-4x²+4x-1+9x²-1=x³+11x²+16x+6
s)-2(9-6x+x²)-2(9+6x+x²)-x²+9=-18+12x-2x²-18-12x-2x²-x²+9=-5x²-27
t)8x³+12x²+6x+1-(1-6x+12x²-8x³)-(4x²-1)=
8x³+12x²+6x+1-1+6x-12x²+8x³-4x²+1=16x³-4x²+12x+1