Răspuns:
a) 0b) 24Explicație pas cu pas:
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[tex] \bf \: a) \:{9}^{5} -({3}^{5})^{2}+{8}^{4} - ( {2}^{4})^{3} = [/tex]
[tex]\bf ({ {3}^{2}})^{5} -{3}^{5 \cdot2}+({ {2}^{3} })^{4} - {2}^{4 \cdot3} = [/tex]
[tex]\bf {3}^{2 \cdot5} -{3}^{10}+{2}^{3 \cdot4} - {2}^{12} = [/tex]
[tex]\bf {3}^{10}-{3}^{10}+{2}^{12}-{2}^{12} = [/tex]
[tex]\bf 0+0= [/tex]
[tex] \boxed{\bf 0}[/tex]
[tex]\bf b) \: {2}^{7} :{4}^{3} + {3}^{3} \cdot27:{3}^{5}+({3}^{1} \cdot 2^{4}-{4}^{2}):2 + 3 = [/tex]
[tex]\bf {2}^{7}:({2}^{2})^{3} + {3}^{3} \cdot {3}^{3}:{3}^{5}+(3 \cdot 16 -16): 2 + 3 = [/tex]
[tex]\bf {2}^{7} : {2}^{2 \cdot3} + {3}^{3 + 3}: {3}^{5}+(48 -16): 2 + 3 = [/tex]
[tex]\bf {2}^{7} : {2}^{6} + {3}^{6}: {3}^{5}+32:2 + 3 = [/tex]
[tex]\bf {2}^{7 - 6} + {3}^{6 - 5}+16+ 3 = [/tex]
[tex]\bf {2}^{1} + {3}^{1}+16+ 3 =[/tex]
[tex]\bf 2 + 3+16+ 3 =[/tex]
[tex] \boxed{\bf 24}[/tex]
==pav38==
