1+1= ......
0 x 9999999999999999999 = ....................................................
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9999999+9999999999999999999
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3090*9999999999999999999
9999999999999999999 cm2 = ......................................km2
999999999,9999999999km2 k cho minh nha
đảm bảo đúng 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000% lun
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9999999999999999999999999999999999999999999999999999999999999999999999999999999 nha đúng 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%
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9999999999999999999999999999999999999999999999999999999999999 nhân 9999999999999999999 bằng ?
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1+2=?
1+2+5=?
1=2+?
9999999999999999999999999999-9999=?
1+2+3+4+5+6+7+9999999999999999999=?
viết một bài văn (bao nhiêu câu cũng đc) nói về người thân đi làm xa rồi về ăn tết với gia đình
|x-3| + |y-2x | =0
|x| + 3|2x -x ² | =0
|5x ² -5 | + 4|y-7 | =0
||x +1 | + |y-5 |=0
|x ² -1| + |y-1| =0
|x-1 | +|x ²-x |=0
a) Ta có: \(\left|x-3\right|+\left|y-2x\right|=0\)
\(\Leftrightarrow\left\{{}\begin{matrix}x-3=0\\y-2x=0\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}x=3\\y=2x=2\cdot3=6\end{matrix}\right.\)
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bạn tin lúc trước tớ nói không tớ sai ở chổ 1x0 đóooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
|x-3| + |y-2x | =0 |x| + 3|2x -x ² | =0 |5x ² -5 | + 4|y-7 | =0 ||x +1 | + |y-5 |=0 |x ² -1| + |y-1| =0 |x-1 | +|x ²-x |=0
a) Ta có: \(\left|x-3\right|+\left|y-2x\right|=0\)
\(\Leftrightarrow\left\{{}\begin{matrix}x-3=0\\y-2x=0\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}x=3\\y=2x=2\cdot3=6\end{matrix}\right.\)
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Bài 2: Tìm x
a) (x-2)2-(2x+3)20 d) x2.(x+1)-x.(x+1)+x.(x-1)0
b) 9.(2x+1)2-4.(x+1)20 e) (x-2)2-(x-2).(x+2)0
c) x3-6x2+9x0 g) x4-2x2+10
h) 4x2+y2-20x-2y+260 i) x2-2x+5+y2-4y0
Đọc tiếp
Bài 2: Tìm x
a) (x-2)2-(2x+3)2=0 d) x2.(x+1)-x.(x+1)+x.(x-1)=0
b) 9.(2x+1)2-4.(x+1)2=0 e) (x-2)2-(x-2).(x+2)=0
c) x3-6x2+9x=0 g) x4-2x2+1=0
h) 4x2+y2-20x-2y+26=0 i) x2-2x+5+y2-4y=0
Cho số x>0.Hãy tính
A)x:1+0:x
B)x×1-x:1
C)x×1+x:x
D)(x×1+1)×0
Xem chi tiết
A). x:1+0:x=x+0=x
B) x×1-x:1=x-x=0
C) x×1+x:x=x+x=2x
D) (x×1+1)×0=0