Giúp e ạ, e dg cần gấp
K
Khách
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DT
Đỗ Thanh Hải
CTVVIP
25 tháng 8 2021
1 such a low bridge that the bus couldn't go under it
2 plays football as well as Tom
3 wake me up at 6 o'clock tomorrow morning" I asked my mother
4 repaired next week
5 her good behavior, everyone likes her
6 her son to be careful when he crossed the street
7 he was seriously ill, he couldn't come
8 old enough to get married
9 the cheapest coat you have
DA
1
Q
0
MA
2
23 tháng 12 2021
g: \(=\dfrac{x^2+2x-x^2-4x-2x+4}{x\left(x-2\right)\left(x+2\right)}=\dfrac{-4x+4}{x\left(x-2\right)\left(x+2\right)}\)
h: \(=\dfrac{2x^2+1-x^2+1-x^2+x-1}{\left(x+1\right)\left(x^2-x+1\right)}\)
\(=\dfrac{x+1}{\left(x+1\right)\left(x^2-x+1\right)}=\dfrac{1}{x^2-x+1}\)
23 tháng 12 2021
\(e,=\dfrac{1}{x-1}-\dfrac{2x}{\left(x^2+1\right)\left(x-1\right)}=\dfrac{x^2-2x+1}{\left(x^2+1\right)\left(x-1\right)}=\dfrac{\left(x-1\right)^2}{\left(x^2+1\right)\left(x-1\right)}=\dfrac{x-1}{x^2+1}\\ f,=\dfrac{3x-1}{2\left(3x+1\right)}+\dfrac{3x+1}{2\left(3x-1\right)}-\dfrac{6x}{\left(3x-1\right)\left(3x+1\right)}\\ =\dfrac{9x^2-6x+1+9x^2+6x+1-12x}{2\left(3x-1\right)\left(3x+1\right)}=\dfrac{2\left(3x-1\right)^2}{2\left(3x-1\right)\left(3x+1\right)}=\dfrac{3x-1}{3x+1}\)
\(g,=\dfrac{x}{x\left(x-2\right)}-\dfrac{x^2+4x}{x\left(x-2\right)\left(x+2\right)}-\dfrac{2}{x\left(x+2\right)}\\ =\dfrac{x^2+2x-x^2-4x-2x+4}{x\left(x-2\right)\left(x+2\right)}=\dfrac{-4x+4}{x\left(x-2\right)\left(x+2\right)}\\ h,=\dfrac{2x^2+1-x^2+1-x^2+x-1}{\left(x+1\right)\left(x^2-x+1\right)}=\dfrac{x+1}{\left(x+1\right)\left(x^2-x+1\right)}=\dfrac{1}{x^2-x+1}\)
19 tháng 11 2023
X x ( 4,2 + 0,8 ) = 2,64
X x 5 = 2,64
X = 2,64 : 5
X = 0,528
19 tháng 11 2023
X x ( 4,2 + 0,8 ) = 2,64
X x 5 = 2,64
X = 2,64 : 5
X = 0,528 ok
a)A=(2;1)
b)Chị hong bíc:<<<
c)trục y e chấm 1 điểm(B) ngay số -1
Cj lên nhanh dzay, e bận đi học nên k cày dc