Câu hỏi của rjn6n67r65

Question

thực hiện phép tính

a, (343+34) : (339+ 1)

b, 310.11+310.5 trên 39.24

༺༒༻²ᵏ⁸ · Accepted Answer

$a,\dfrac{3^{43}+3^4}{3^{39}+1}$

$=\dfrac{3^4\cdot\left(3^{39}+1\right)}{3^{39}+1}$

$=3^4$

$=81$Câu trả lời: $a,\dfrac{3^{43}+3^4}{3^{39}+1}$

$=\dfrac{3^4\cdot\left(3^{39}+1\right)}{3^{39}+1}$

$=3^4$

$=81$

༺༒༻²ᵏ⁸ · Answer

$b,\dfrac{3^{10}.11+3^{10}.5}{3^9.2^4}$

$=\dfrac{3^{10}\left(11+5\right)}{3^9.2^4}$

$=\dfrac{3^{10}.16}{3^9.2^4}$

$=\dfrac{3^{10}.2^4}{3^9.2^4}=3$Câu trả lời: $b,\dfrac{3^{10}.11+3^{10}.5}{3^9.2^4}$

$=\dfrac{3^{10}\left(11+5\right)}{3^9.2^4}$

$=\dfrac{3^{10}.16}{3^9.2^4}$

$=\dfrac{3^{10}.2^4}{3^9.2^4}=3$