[latex]2.\ A.) 3 - (-3)^{2}-(-3)^{3}-(-3)^{4}=3-9-(-27)-81=\=3-9+27-81=-60\\ B.) (-4)^{3}-4^{3}-((-5)^{4}-5^{4})=-64 - 64-(625-625)=-128-0=-128\\ C.) 3(7-(-2)^{3})-(1-(2-2^{2}))=3(7-(-8))-(1-(2-4))=\=3(7+8)-(1-(-2))=3*15-(1+2)=45-3=42\\ D.) 3-[9-(18-(-2)^{3}(-3)^{2})]=3-[9-(18-(-8)*9)] = \ =3-[9-(18-(-72)]=3-[9-(18+72)]=3-[9-90]=\=3-(-81)=3+81=84[/latex] [latex]3.\A.) x=(-2)^{2}+(-3)^{2}=4+9=13\ liczba przeciwna do 13 - extgreater -13 \ B.) x=4^{2}-(-5)^{2}=16-25=-9\ liczba przeciwna do -9 - extgreater 9[/latex]
Zad. 2. a) 3 - (-3)² - (-3)³ - (-3)⁴ = = 3 - 9 - (-27) - 81 = -6 + 27 - 81 = 21 - 81 = - 60 b) (-4)³ - 4³ - ((-5)⁴ - 5⁴) = = - 64 - 64 - (625 - 625) = - 128 - 0 = - 128 c) 3(7 - (-2)³) - (1 - (2 - 2²) = = 3(7 - (-8)) - (1 - (2 - 4) = 3(7 + 8) - (1 - (-2)) = 3· 15 - (1 + 2) = = 45 - 3 = 42 d) 3 - {9 - [18 - (-2)³(-3)²]} = = 3 - {9 - [ 18 - (-8)·9]} = 3 - {9 - [18+72]} = 3 - (9 - 90) = 3 - (-81) = = 3 + 81 = 84 Zad. 3. a) x = (-2)² + (-3)² = 4 + 9 = 13 liczba przeciwna do x , to -x = -13 b) x = 4² - (-5)² = 16 - 25 = -9 liczba przeciwna do x, to -x = -(-9) = 9
