tìm x biết:
a) \(5^x.\left(5^3\right)^2=625\)
b)\(\left(\dfrac{12}{15}\right)^x=\left(\dfrac{5}{3}\right)^{-5}-\left(-\dfrac{3}{5}\right)^4\)
c)\(\left(-\dfrac{3}{4}\right)^{3x-1}=\dfrac{256}{81}\)
d)\(172x^2-7^9:98^3=2^{-3}\)
Tìm x biết:
\(\left(\frac{3}{5}\right)^x.\left(\frac{625}{81}\right)^3=\frac{243}{3125}\)
bài 1 tìm x biết
a)(-2/3)^2.x=(-2/3)^5
b)(-1/3)^3.x=1/81
c)(x-1)^3=27
d)(2x+1)^2=25
e)(2x-3)^2=36
f)5^x+2=625
g)(x-1)^x+2=(x-1)^x+4
h)(2x-1)^3=-8
k)1/4.2/6.3/8.4/10.5/12....30/62.31/64=2^x
bai2 tim so nguyen duong n biet
a)32<2^n<128
b)2,16>=2^n>4
c)9,27<=3^n<=243
Tìm x biết
a. (2x+1)2 =1
b.(3x-2)2=0
c.(x+3)3=-27
d.5x.(53)2=625
e.(-3/4)3x-1=256/81
f.172x2-79:983=2-3
Giúp mk với nhé! Mk đang cần gấp
Tìm số mũ n biết
(-1/2)^n=1/64
81/625=(3/5)^n
3^n/32=2
(-3)^3×(-3)^n=243
Tìm x
1+3+5+...+(2x-1)=625
1, tìm n e N biết
a, 2n:4=16 b,5n=625
c,2n.16=128 d,3n+3=81
2, tìm x e N biết
a,x3=64 b,(2x+1)3=27
c, x3=x d, 25+5 .x =75.73
Tìm x, biết :
a. \(3x^2-51=-24\)
b. \(5^x.\left(5^3\right)^2=625\)
c. \(\left(\frac{-3}{4}\right)^{3x-1}=\frac{256}{81}\)
tìm x biết
a,[x-1]^3=27
b, x^2+x=0
c,[2x=1]=25
d,[2x-3]^2=36
e,5^x+2=625
f,[x-1]^x+2=[x-1]^x+4
g,[2x-1]^3=8
