Các câu hỏi tương tự
tim x nguyen biet:
a 8.(x mu 2 +3).(5-x)
b)(2x + 1)mu 2=25
c) (1-3x)mu3 =64
d)(4-x)mu3 =-27
e) xmu2 -5x =0
Cau 3 (2 diem). Tim so tu nhien x, biet:
a. 123 - x =38
b. (x+15) - 7 =33
c. 3x+3 - 13=230
tim x biet:a.2x^2-1=17/8;b.(2x-0,05)(x+3)>0;c.(7-x)(x+19)>0
Tim x biet:A. 2/3+x=-45%
B:x/5=5/6+-19/30.ai nhanh tay giai gium cho minh thi minh tick cho!
Tim cac so nguyen x,y biet:a)*x2 -3*x+1 chia het cho x+2 b)x2-xy = 5x-4y-9 c) (x2-8)*(x2-15)<0 d) (x+1)2+(y+1)2+(x-y)2=2 e) (x2-4)x2>0 ai lam truoc minh tick,mai minh di hoc rui,lam giup minh di pls Thank ban truoc ne ;(
cac ban oi giup minh voi
1.tim a,b thuoc Z,biet:a.(2b-3)=-6
2.cho x,y thuoc Z thoa man x mu 2 +y mu 2 chia het cho 3.chung to x va y chia het cho 3.
Tim a , b nguyen biet:a-b=ab
tim so nguyen x biet:a,(x2+8).(x2-9) = 0 b, (x2-5).(x2-25)<0 c,(x-3).(x+7)<0
(x+4). (x-23)=0
tim x=
tim ba so a;b;c biet:a+b-c=-3;a-b+c=11;a-b-c=-1