`(7x-11)^3 =5^2 *2^5 +200`
`=>(7x-11)^3 =25*32+200`
`=>(7x-11)^3 =800+200`
`=>(7x-11)^3 =1000`
`=>(7x-11)^3 =10^3`
`=>7x-11=10`
`=>7x=10+11`
`=>7x=21`
`=>x=21:7`
`=>x=3`
Đề yêu cầu làm gì em?
(7x - 11)3=25.52+200
(7x-11)3=25.52+200
6x-2:12=3
3+2x-1=24-[42-(22-1)
(7x-11)3=25.52+200
Dấu "." là dấu nhân nha
tìm x:
a) \(2^x-15=17\)
b) \(\left(7x-11\right)^3=2^5.5^2+200\)
c) \(x^{10}=1^x\)
d) \(x^{10}=x\)
e) \(\left(2x-15\right)^5=\left(2x-15\right)^3\)
Hết~
nho cac ban giup minh nhe
1.tim x thuoc N biet:
a)(2x+1)mu 3=125 b)(x-5)mu 4=(x-5)mu 6 c)2 mu x-15=17 d)(7x-11)mu 3=2 mu 5. 5mu 2+200
2.viet cac tich sau hoac thuong duoi dang luy thua cua mot so:
a)2 mu 5 . 8 mu 4 b)25.125 c)25 mu 5:25 mu 7
3.viet cac tich, thuong sau duoi dang luy thua:
a) 2 mu 10:8 mu 3 b)12 mu 7:6 mu 7 c)5 mu 8:25 mu 2
4.tinh gia tri cac bieu thuc sau:
a mu3 . a mu 9 (a mu 5)mu7 (a mu 6)mu 4. a mu 12 4.5 mu 2-2.3 mu 2
1. Tìm x:
a) \(2^x-15=17\)
b) \(\left(7x-11\right)^3=2^5.5^2+200\)
c) \(x^{10}=1^x\)
d) \(x^{10}=x\)
e)\(\left(2x-15\right)^5=\left(2x-15\right)^3\)
2. Tính:
\(A=\dfrac{11.3^{22}.3^7-9^{15}}{\left(2.3^{14}\right)^2}\)
a) \(\dfrac{45^3.20^4.18^2}{180^5}\)
b)\(\dfrac{4^9.3^6+64^4}{16^4.100}\)
Bài 2: Tìm x
a)\(\left(2x+1\right)^3=27\)
b)\(3^{2x+1}.11=297\)
c)\(\left(7x-11\right)^3=2^5.5^2+200\)
d)\(\left(x-5\right)^4=\left(x-5\right)^6\)
Ngày mai đi học rùi, cần lắm
A. 7⁸÷7⁵-11² B. 3⁴.3-5¹⁶÷5¹³+2023⁰.12² C. 4³÷4-2².3+5².3 D. 2015⁰.14+3².2-5¹⁰÷5⁸
