Question

( 3^15x 4 + 5 x 3^15) : 3^16

Giải giúp mình nhé

Answer 1

\(\frac{3^{15}.4+5.3^{15}}{3^{16}}=\frac{3^{15}\left(4+5\right)}{3^{16}}=\frac{3^{15}.9}{3^{16}}=\frac{3^{15}.3^2}{3^{16}}=\frac{3^{17}}{3^{16}}=3\)

Answer 2

\(\frac{3^{15}.4+5.3^{15}}{3^{16}}=\frac{3^{15}.\left(4+5\right)}{3^{16}}=\frac{9}{3}=3\)

Answer 3

( 3¹⁵ x 4 + 5 x 3¹⁵ ) : 3¹⁶

= 3¹⁵ x ( 4 + 5 ) : 3¹⁶

= 3¹⁵ x 9 : 3¹⁶

= 129140163  : 43046721

= 3

Answer 4

( 3^15 * 4 + 5 * 3^15) : 3^16 = [3^15 * (4 + 5)] : 3^16

= (3^15 * 9) :3^16 = 129140163 : 3^16 = 3

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Answer 5

\(\frac{3^{15}.4+5.3^{15}}{3^{16}}=\frac{3^{15}\left(4+5\right)}{3^{16}}=\frac{3^{15}.9}{3^{16}}=\frac{9}{3}=3\)