1.Rozloz na czynniki , stosujac metode grupowania wyrazów:
a) ax+ay+bx+by
b)ax-ay+bx-by
c)x^2+xy+xc+yc
d)x^2+xy-ax-ay
e)ac-bc+a-b
f)xz+yz-x-y
2.Rozloz na czynniki , stosujac metode grupowania wyrazów:
a)x^2-5x+ax-5a
b)3m^2x+4x-4x^2-3m^2x^
c)x^3+3x^2+6x+18
d)x^3-x2+2x-2
e)x^3+4x^2x^2-8x
f)x^4+3x^2-3x^3-9x
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a) a(x+y)+b(x+y)= (a+b)(x+y)
b) a(x-y)+b(x-y)= (a+b)(x-y)
c) x(x+y)+c(x+y) = (z+c)(x+y)
d) x(x+y)-a(x+y) = (x-a)(x+y)
e) c(a-b)+1(a-b)= (c+1)(a-b)
f) z(x+y)-1(x+y) = (z-1)(x+y)
2.
a) x(x-5)+a(x-5)= (x+a)(x-5)
b) x(3m2+4)-x2(3m2+4) = (x-x2)(3m2+4)
c) x2(x+3)+6(x+3)= (x2+6)(x+3)
d) x2(x-1)+2(x-1)= (x2+2)(x-1)
e) przykład jest zle przepisany chyba
f) x3(x-3)+3x(x-3)= (x3+3x)(x-3)