Răspuns:
Explicație pas cu pas:
[tex] \frac{15 {}^{4} }{124 \times {3}^{4} + 3 {}^{4} } = \frac{5 {}^{4} \times 3 {}^{4} }{(124 + 1)3 {}^{4} } = \frac{5 {}^{4} \times \not{3 {}^{4} }}{125 \times \not{3 {}^{4} } } = \frac{5 {}^{4} }{125} = \frac{5 {}^{4} }{5 {}^{3} } = 5 \\ [/tex]
