\(2^x+2^{x+1}+2^{x+2}=56\)
\(2^x\left(1+2+2^2\right)=56\)
\(2^x\cdot7=56\)
\(2^x=8\)
\(x=3\)
2x+2x+1+2x+2=56
a)2x+2x+1+2x+2=56
b)3x+3x+2+3x+3=111
a,( x-1)^7 = (1-x)^10
b,(2x-3)^5 = (3-2x)^9
c,2^n+2 + 2^n+1-2^n = 56
d, 2^m + 2^n = 2^m+n
Tìm x ∈ N , biết.
a) 3 x + 1 : 3 4 = 81
b) 3 x + 3 . 3 x + 1 = 729
c) 2 x + 3 . 2 x = 128
d) 23 + 3 x = 5 6 : 5 3
e) 2 x + 2 x + 4 = 272
Tìm x ∈ N, biết.
a, 3 x + 1 : 3 4 = 81
b, 3 x + 3 . 3 x + 1 = 729
c, 2 x + 3 . 2 x = 128
d, 23 + 3 x = 5 6 : 5 3
e, 2 x + 2 x + 4 = 272
tìm x
1, (-12)^2 . x = 56+10.13 .x
2, (2x + 1)^3 =-27
3, (2x+1)^2 =9
4, (x-3) (x^2+1) =0
Tìm x:
a) 1 5 27 + 3 x − 7 9 3 = 24 27
b) 2 x − 1 2 = 3 4
c) 2 x − 1 3 + 5 6 = 1
Tìm x biết: 56-(2x-1) mũ 2=|3^2-7^2| 🥺
Tìm x, biết:
a) 2 | x | − 1 2 = 3 4
b) 2 x − 1 3 + 5 6 = 1
