Zadanie 1. a) [latex]x cdot (a+b)[/latex] b) róznica liczby x oraz kwadratu liczby y c) [latex]7x^2+12 = 7 cdot (-2)^2+12=7 cdot 4 +12 = 28+12=40[/latex] Zadanie 2. a) [latex]8x^2 cdot 2xy cdot x cdot y = 16x^4y^2[/latex] b) [latex]-6x cdot (-y) cdot (-x) cdot x^3 cdot y^2 cdot 5 = -30x^5y^3[/latex] Zadanie 3. a) [latex]-x-x^2-3x+2x+5x^2-6x+3x = 4x^2 -5x[/latex] [latex]12ak^2 -4a^2k+8ak -6a^2k^2+5ak^2 -2a^2k = \ -6a^2k^2-6a^2k+17ak^2+8ak[/latex] b) [latex]10x^2y cdot 5xy^3 cdot 2x^3y^3=100x^6y^6[/latex] [latex](42k^3m^5) : (-7km^4) = -6k^2m[/latex] Zadanie 4 [latex]-(5k+m)+(-6m+k) = -5k-m-6m+k = -4k-7m[/latex] Zadanie 5. a) 9(2x-3y+5) = 18x-27y+45 b)[latex]0,5m(-8mp-6p+10m) = -4m^2p-3mp+5m^2[/latex] Zadanie 6. a) [latex]15xy -20xz +25xt = 5x(3y-4z+5t)[/latex] b) [latex]p^2m^3-p^4+m^4p^2-p^2=p^2(m^3-p^2+m^4-1)[/latex]
