(-x+4)^6 = (-x+4) * 32
(-x+4)^5 = 32
-x+4 = 5
-x= 1
x=-1
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Các câu hỏi tương tự
1)tim x biet rang:
a)3^x-1=1/243
b)2^x+2^x+3=144
c)81^-2x.27x=9^5
2)tim tiep so ghang thu 5 cua day so sau:-1/a^2;2/a^3;-6/a^4;24/a^5;...
3)tim so tu nhien x biet :
a)4^x+4^x+3=4160
b)2^x-1+5.2^x-2=7/32
1 tim cac so nguyen x,y biet x/7=6/21 -5/y=20/28 1/2=x/12 x/8=-28/32 3/y=12/24 3/4=15/y 2 viet 3 phan so bang phan so -10/15
MOI NGUOI GIUP MINH VOI NHA
Tim x thuoc Z biet :
E=6-x/x-2 nhan gia tri nguyen
tim x biet (1+3+....+99)x=2+4+6+.....+100
tim x biet (2x-4)^6=(2x-6)^2
tim cac so x,y,z ,biet x/2=y/4=z/6 va x-y+z
tim x biet :
-x-2/3=-6/7
4/7-x=1/3
tim x,y,z biet x/4=y/3 . x/3=z/5 và 2x-3y=6
tim x,biet:
a,x+1/3 =3/4
b,-x-2/3=6/7