2. x [ x+ 3 ] + 3 . [2+ x ] = 62
giup minh voi
chung minh rằng
x^3+1964x chia het cho 24 voi x chẵn
x^4-4x^3-4x^2+16x chi9a het cho 24 voi x chẵn
x^4+6x^2 - 7 chia het cho 32 voi x lẻ
2. [ x+ 3] + 3 . [ 2+x] = 62
moi nguoi giup minh voi mai minh nop bai roi
\(2\left(x+3\right)+3\left(2+x\right)=62\\ 2x+6+6+3x=62\\ 5x+12=62\\ \Rightarrow5x=50\\ \Rightarrow x=10\)
Vậy x = 10
2(x+3)+3(2+x)=62
2x+6+6+3x=62
5x+12=62
⇒5x=50
⇒x=10
Tim x,biet:
(13.3x-2-3x):2=162 (Voi x ≥2)
Trinh bay cach lam ho minh voi nhe
tim x biet: |x-3|+|5-x|+2|x-4|=2 AI GIAI GIUP MINH VOI
Tim x, biet:
a)(x-3)^3-(x-3)(x^2+3x+9)+9(x-1)^2=15
b)(x^2-2)^2+4(x-1)^2-4(x^2-2)(x-1)=0
Giup minh voi!
10/7 x 2/3 + 6/5 : 3/10 - 2/3 x 3/7 lam on jup minh voi
tim x biet: |x-2|+|x-5|=3 AI GIUP MINH VOI
Tim x biet (x+1)(x+2)(x+3)+...+(x+100)=5750
giup minh voi nhe
( x + 1 ) + ( x + 2 ) + ( x + 3 ) +... + ( x + 100 ) = 5750
( x + x + x + ... + x ) + ( 1 + 2 + 3 + ... + 100 ) = 5750
( x . 100 ) + ( 1 . 100 ) . 100 : 2 = 5750
( x . 100 ) + 5050 = 5750
x . 100 = 5750 - 5050
x . 100 = 700
x = 700 : 100
x = 7
Vậy x = 7
( x + 1 ) + ( x + 2 ) + ( x + 3 ) +... + ( x + 100 ) = 5750
( x + x + x + ... + x ) + ( 1 + 2 + 3 + ... + 100 ) = 5750
( x . 100 ) + ( 1 . 100 ) . 100 : 2 = 5750
( x . 100 ) + 5050 = 5750
x . 100 = 5750 - 5050
x . 100 = 700
x = 700 : 100
x = 7
Vậy x = 7
tinh A = 3^6 :3^2 + 2^3 x 2^2
giup minh voi minh dang gap lam!!!!!