Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
\(a,4^x=64\)
\(4^x=4^3\)
\(x=3\)
\(b,3\cdot\left(5^x-16\right)=3^3\)
\(5^x-16=3^3:3=3^2\)
\(5^x-16=9\)
\(5^x=9+16=25\)
\(5^x=5^2\)
\(x=2\)
1/
a. \(x^3-2=25\)
\(x^3=25+2\)
\(x^3=27\)
\(\Rightarrow x=3\)
b.\(\left(x-3\right)^2=25\)
\(\left(x-3\right)^2=5^2\)
\(\Rightarrow x-3=5\)
\(\Rightarrow x=8\)
1,a, x^3-2=25 b, (x-3)^2=25 c, x^3-x^2=55 d,[(8.x-12):4].3^7=3^10
x^3=27 (x-3)^2=5^2 không có giá trị x (8.x-12):4=3^3
x^3=3^3 x-3=5 8.x-12=108
x=3 x=8 8.x=120
x=15
2, a, \(7^6:7^4+3^4.3^2-3^7:3\) b, 1736-(21-16).32+6.7^2 c,56.17+17.44-4^3.5+6.(3^2-2)
=\(7^2+3^6-3^6\) =1736-5.32+6.49 =17.(56+44)-320+42
=\(49\) =1736-160+294 =17.10-278
=1736+134 =170-278
=1870 =-108
d, 3.10^2-[1200-(4^2-2.3)^3]
=300-[1200-(16-6)^3]
=300-(1200-10^3)
=300-(1200-1000)
=300-200
=100
ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
haaaaaaaaaaaaaaaaaaaaaaaaaaaaarraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
2^2 = 2.2 = 4
2^3 = 2.2.2 = 8
2^4 = 2.2.2.2. = 16
2^5 = 2.2.2.2.2 = 32
2^6 = 2.2.2.2.2.2 = 64
2^7 = 2.2.2.2.2.2.2 = 128
2^8 = 2.2.2.2.2.2.2.2 = 256
2^9 = 2.2.2.2.2.2.2.2.2 = 512
3^2 = 3.3 = 9
3^3 = 3.3.3 = 27
3^4 = 3.3.3.3 = 81
3^5 = 3.3.3.3.3 = 243
=> mình giải giúp bạn hai bài trên rồi nhé, cứ thế rồi bạn làm mấy bài tiếp theo chứ mà giải nữa thì lâu lắm với bài cũng dễ :>
32 . 34 . 34 = 310
25 + 4.25 = 5.25
34 . 35: 9 = 37
26 : 4 = 16
Mik viết luôn câu trae lời bn nhé
315:3= 315: 31= 315-1=314
x7.x6:x13= x7+6-13=x0=1
y30:y6.y=y30-6+1=y25
\(3^{15}:3=3^{15-1}=3^{14}\)
\(x^7.x^6:x^{13}=x^{7+6-13}=x^0=1\)
\(y^{30}:y^6.y=y^{30-6+1}=y^{25}\)
\(3^3.17-3^3.8\)
\(=3^3.\left(17-8\right)\)
\(=3^3.9\)
\(=3^3.3^2\)
\(=3^5\)
\(\left(7+3^3\div3^2\right).4-3\text{ }\)
\(=\left(7+3\right).4-3\)
\(=10.4-3\)
\(=40-3\)
\(=37\)