Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
bài 11
\(6.6.6.6=6^4\) '\(b.5.15.15.15.3=15.15.15.15=15^4\)
\(c.81.3.3.3=3^4.3^3=3^7\)
bài 12.
\(a.765.5=153.5^2\)
\(b.837.7.7=93.21^2\)
\(c.568.8.2.4=71.8.2^6=71.2^9\)
a: \(3\cdot3\cdot3\cdot3\cdot3=3^5\)
b: \(y\cdot y\cdot y\cdot y=y^4\)
c: \(5\cdot p\cdot5\cdot p\cdot2\cdot q\cdot4\cdot q=25\cdot2\cdot4\cdot p^2q^2=2\cdot\left(10qp\right)^2\)
d: \(a\cdot a+b\cdot b+c\cdot c+d\cdot d\cdot d\cdot d=a^2+b^2+c^2+d^4\)
1)
a) 8.8.8.8.8.8.8.8 = 88
b) 2.2.2.3.6.6 = 2.2.2.3.2.3.2.3
= 25.33
c) 3.7.21.21.49 = 3.7.3.7.3.7.7.7
= 33.75
3) Ta có: 2x - 1 = 52 + 2.5
2x - 1 = 25 + 10
2x - 1 = 35
2x = 35 + 1
2x = 36
2x = 25
x = 5
Chúc bạn học tốt!
1/
- 8.8.8.8.8.8.8.8 = 88
- 2.2.2.3.6.6 = 2.2.2.3.2.3.2.3 = 25 . 33
- 10.100.1000 = 10.10.10.10.10.10 =106
- 3.7.21.21.49= 3.7.3.7.3.7.7.7= 33. 75
1) 2 . 2 . 2 . 3 . 3 = 23 . 32
2) 23 . 22 . 24 = 23 + 2 + 4 = 29
102 . 103 . 105 = 102 + 3 + 5 = 1010
1)
a) 23x 32 = 72
2)
a) 23x22x24= 29
b) 10^2x10^3x10^5=10^10
c)x.x^5=x^6'
k mik nha
3.
a) 4.4.4.4.4 = 45
b) 3.3.3.5.5.5 = 33 . 53
4.
a) 35 . 34 = 39
b) 53 . 55 = 58
c) 22
Hk tốt
1.
a) \(3^4\times3^5\times3^6=3^{4+5+6}=3^{15}\)
b) \(5^2\times5^4\times5^5\times25=5^2\times5^4\times5^5\times5^2=5^{2+4+5+2}=5^{13}\)
c) \(10^8\div10^3=10^{8-3}=10^5\)
d) \(a^7\div a^2=a^{7-2}=a^5\)
2.
\(987=900+80+7\\ =9\times100+8\times10+7\\ =9\times10^2+8\times10^1+7\times10^0\)
\(2021=2000+20+1\\ =2\times1000+2\times10+1\times1\\ =2\times10^3+2\times10^1+1\times10^0\)
\(abcde=a\times10000+b\times1000+c\times100+d\times10+e\times1\\ =a\times10^4+b\times10^3+c\times10^2+d\times10^1+e\times10^0\)
1.a,25.53
b,x3.y4
c,73.34
2.a,73
b,27
c,313