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[tex] {144}^{x } + 7 + {3}^{x} \times {4}^{x} - 70 = 0[/tex]


Răspuns :

Răspuns:

144^x+7+(12^2)^x-70=0 deci 144^x+7+144^x=70, 288^x=70-7=63, 288^x=63