Question

tính giá trị biểu thức :

3⁸ : 3⁴ + 2² . 2³ b 3 . 4² - 2 . 3²

c \(\dfrac{4^6.3^4.9^5}{6^{12}}\) d \(\dfrac{21^2.14.125}{35^3.6}\) e \(\dfrac{45^3.20^4.18^2}{180^5}\)

g \(\dfrac{2^{13}+2^5}{2^{10}+2^2}\)

Viết cách làm ra hộ mk nha. Bạn nào nhanh mk tick cho

Answer 1

a, =\(3^4+2^5=81+32=113\)

b, =\(3.\left(4^2-2.3\right)=3.\left(16-6\right)=3.10=30\)

c, =\(\dfrac{2^{12}.3^4.3^{10}}{2^{12}.3^{12}}=\dfrac{2^{12}.3^{14}}{2^{12}.3^{12}}=3^2=9\)

d, =\(\dfrac{3^2.7^2.2.7.5^3}{5^3.7^3.2.3}=3\)

e, =\(\dfrac{3^6.5^3.2^8.5^4.2^2.3^4}{2^{10}.3^{10}.5^5}=\dfrac{3^{10}.2^{10}.5^7}{2^{10}.3^{10}.5^5}=5^2=25\)

g, =\(\dfrac{2^5.\left(2^8+1\right)}{2^2.\left(2^8+1\right)}=\dfrac{2^5}{2^2}=2^3=8\)