2 x ( x - 183 ) = 2^3 - 3^2
2 x ( x-183 ) = -1
x - 183 = -1 : 2
x - 183 =\(-\frac{1}{2}\)
x =\(-\frac{1}{2}+183\)
x = 182,5
2 x ( x - 183 ) = 2^3 - 3^2
2 x ( x-183 ) = -1
x - 183 = -1 : 2
x - 183 =\(-\frac{1}{2}\)
x =\(-\frac{1}{2}+183\)
x = 182,5
7 nhan 6 mũ 10 nhan 2 mu 20 nhan 3 mu 6-2 mu 19 nhan 6 mu 15 phần 9 nhân 6 mu 19 nhan 2 mu 9 -4 nhan 3 mu 17 nhan 2 mu 26
tim x thuoc N:
a) 2 mu x =4 nhan 128
b)2 mu x nhan 3 mu x =4 nhan 9
a mu 1 nhan a mu 2 nhan a mu 3 nhan ..... a mu 100 = a mu x
hoi x bang bao nhieu
[2 mu 17 + 17 mu 2 ] nhan [9 mu 15 - 3 mu 15] nhan [ 2 mu 4-4 mu 2]
3 mu 3 nhan 9 tru 3 mu 4 nhan 3 cong 5 mu 8 nhan 5 mu 0 tru 5 mu 12 chia 25 mu 2
6 mu 5 nhan 2 mu 7 tren 3 mu 4 nhan 2 mu 10
bai 1; so sanh
a, 3 mu 600 va 2 mu 900 b, 2 mu 360 va 3 mu 240
c, 3 mu 236 va 2 mu 354
bai 2,tim x biet ;
a,5 mu x + 5 mu x +2 =650
b, 2 mu x +3 +5 nhan 2 mu x +2 - 2 mu x + 1 = 208
bai 3,tinh tong;A=3 + 3 mu 2 + 3 mu 3 +3 mu 4 +.........+3 mu 2019 +3 mu 2020
bai 2, viet gon duoi dang 1 luy thua ;
a, 3 mu 6 nhan 3 mu 8 b, 2 mu 7 nhan 2 mu 11 c 5 mu 4 nhan 5 mu 6 d,16 nhan 2 mu 5
e, 3 mu 7 nhan 2 mu 7 f, 25 nhan 5 mu 7 nhan 125 g, 27 nhan 3 mu 4 nhan 9 h, 64 nhan 8 nhan 2 mu5
giup minh voi thu 6 la minh can roi ai nhanh minh nhan like
giai giup minh bai toan nay voi : 2 .x -138= 2 mu 3 nhan 3 mu 2