Zapisz w postaci sumy algebraicznej:
a)
b) 5(x - z) + 2(z - x)
c)
d)
1.2ac + bc -2ac - bc + 1 = 1 (podkreslone skrocilo się)
2.5x - 5z + 2z -2x =3x - 7z
3.2x³ -10x² - 3x³ -3x² +5 =x³ -13x²
4.6a² +6b + 2 -6a² + 3 -3b -1 =3b +4
a)(2a+b)c-(2ac-bc+1)=2ac+bc-2ac+bc-1=2bc+1
b)5(x-z)+2(z-x)=5x-5z+2z-2x=-3z-3x=-3(z+x)
c)2x2(x-5)-3x(x2-3x+5)=2x3-10x2-3x3+9x2-15x=-x3-x2-15
d)6(a2+b+1/3)-6(a2-1/2)-3(b+1/3)=6a2+6b+2-6a2+3-3b-1=3b+4
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1.2ac + bc -2ac - bc + 1 = 1 (podkreslone skrocilo się)
2.5x - 5z + 2z -2x =3x - 7z
3.2x³ -10x² - 3x³ -3x² +5 =x³ -13x²
4.6a² +6b + 2 -6a² + 3 -3b -1 =3b +4
a)(2a+b)c-(2ac-bc+1)=2ac+bc-2ac+bc-1=2bc+1
b)5(x-z)+2(z-x)=5x-5z+2z-2x=-3z-3x=-3(z+x)
c)2x2(x-5)-3x(x2-3x+5)=2x3-10x2-3x3+9x2-15x=-x3-x2-15
d)6(a2+b+1/3)-6(a2-1/2)-3(b+1/3)=6a2+6b+2-6a2+3-3b-1=3b+4