ban co the giai chi tiet gium minh duoc khong
ban co the giai chi tiet gium minh duoc khong
Tim x biet :
(x + 1) + (x + 2) + (x + 3 )+ ... + (x + 20) = 250
BAI NAY LA BAI SAO DO CAC BAN MINH KHONG BIET LAM CAC BAN GIUP MINH VOI
axb=a+b
giup minh voi tim giai bai nay voi (mac giu minh biet ket qua nhung ko bik cach lam)
giup mk voi
bai 1 :
tim a,b biet ab = 127 va a < b
bai 2 :
tim uoc ( d )
d = 2 ^ 2 . 3. 5
1 Tim a biet .
a+b-c=18. voi b=10;c=-9
2a-3b+c=0
1-2b+c-3a=-9. voi b=-3 ;c=-7
Cac ban giup minh giai bai nay nhe cam on nhieu...
CAC BAN GIUP MINH GIAI BAI NAY VOI
tim so tu nhien co hai chu so biet neu biet xen vao giua 2 chu so thi so tu nhiencua no chinh so do thi so do gap 99 lan
tim x biet:
a, 8x - 75 = 5x + 21
b, 9x + 25 = -( 2x - 58 )
c, / 2x - 1 / = /-5/
Giup minh lam bai nay voi ca cach lam nua nhe
Bai1:cmr 2 stn dang 2n+3 va 3n+2 bao gio cung la 2 so nguyen to cung nhau.
Bai 2:tim 2 chu so a ; b biet (a+b)(a-b)=20.
Bai 3: tim 2 stn lien tiep co 2 chu so sao cho 1 so chia het cho 25, so kia chia het cho 4.
Bai 4: tim a;b biet a.b=360 va BCNN(a,b)=60
giup minh voi mai minh nop bai roi : tim cac so nguyen x biet 13 la boi cua x-4
Cac ban giup minh nhanh voi : tim stn a biet a chia het cho 540 va 720 va a lon nhat