Question

completati astfel incit egalitatea sa fie adevarata​

Answer 1

a) 4

b) -5

c) 3

d) -4

e) 3

f) -2

Cu aceste numere completeti

Answer 2

$3 { }^{x} = 81 \\ 3 {}^{x} = 3 {}^{4} \\ x = 4 \\ \\ 2 {}^{x} = \frac{1}{32} \\ 2 {}^{x} = {2}^{ - 5} \\ x = - 5 \\ \\ ( \frac{1}{5} ) {}^{x} = \frac{1}{125} \\ ( \frac{1}{5} ) {}^{x} = ( \frac{1}{5} ) {}^{3} \\ x = 3 \\ \\( \frac{1}{4}) {}^{x} = 64 \\ 2 {}^{ - 2x} = 2 {}^{6} \\ \\ - 2x = 6 \\ x = 6 : ( -2 ) \\ x = - 3 \\ \\ ( \frac{2}{3} ) {}^{x} = \frac{8}{27} \\ ( \frac{2}{3} ) {}^{x} = ( \frac{2}{3} ) {}^{3} \\ x = 3 \\ \\ ( \frac{4}{5} ) {}^{x} = \frac{25}{16} \\ ( \frac{4}{5} ) {}^{x} = ( \frac{4}{5} ) {}^{ - 2} \\ x = - 2$