Các câu hỏi tương tự
3.5x(-4,32+15,16)=17,5
cach ve do thi ham so y=3.5x
Bài 1
a)
3.5x+3.7x+2.7=-7.8
b)
-7.2x+3.7x+2.7=-7.8
Tinh hop li :
A = \(\frac{5.2^{30}.3^{18}-2^2.3^{20}.2^{27}}{5.2^9.6^{19}-7.2^{29}.3^{18}}\)
a) (x-3.5x=20)=0 x=?
b)(x-5).x+7=0 x=?
c) (2x-18).(3x=12)=0 x=?
20 tháng 2 2022 lúc 21:31
`D=\frac{4^7.2^8.(-2)^5}{3.2^15.16^2-5.2^2.1024^2}`
2^(x+3)+5.2^(x+2)=224
\(\dfrac{4^7.2^8}{3.2^{15}.16^2-5.2^2.\left(2^{10}\right)^2}\)
2\(2^{x-1}+5.2^{x-2}=\frac{7}{32}\)