=> /2x-3/ = -21.(-3) = 63

=> TH1: 2x-3 = 63 => 2x = 63+3 = 66 => x= 66:2 = 33

TH2: 2x-3 = -63 => 2x = -63+3 = -60 => x= -60:2 = -30

vậy các số nguyên x thỏa mãn là 33 ; -30

duyệt đi

1.It's a shame you didn't tell me earlier.

->I wish..................

2. "Do you want me to invite Maria?"

->Shall.................

3. Did they build the garage at the same time as the house ?

->Was...................?

4.I will do any thing to be able to pass the exam.

->Nothing..................

1. My tooth was ready ......, so I went to the dentist.(pain)

2.It will take a lot of money to ..........this large.(furniture)

3.The ............of the Hollywood actor, Jimmy Halton,was announced last night.( die)

4. This drill is............It doesn't work at all(use)

5.Do use ever suffer from.........(bore)

6. I will never gorget the..........you're shown me.(kind)

7. The girl looked.........for a moment and then answer.(think)

8. Sarah's compositions are full of mistakes but they are very.........(imagne)

9.It was .........of tom to accuse Bill of having told him a lie.(reason)

10.He promised to come but he is very .......(rely)

tìm x biết

(x-2)(x²-2x+4)-(x+2)(x²+2x+4)+3x=7

cho (a+b+c+d)(a-b-c+d)=(a-b-c+d)(a+b-c-d)

CM: ad=bc

viết lại câu

1.why did no one inform me of the delay?

->why was.................

2.Her mother wouldn't let her ride the motorbike.

->she wouldn't...............

3.What we saw astonished us.

->We were................

4. Mrs Williams wants then to dry her hair.

->Mrs Williams is....................

5. She showed me the one that was too small.

->The one...........................

6. Have you got a larger size than this?

->Is this.........................

(1+1/2)*(1+1/3)*...*(1+1/100)

=3/2*4/3*5/4*6/5*...*101/100

=101/2

Toán này là toán lớp 5

1. Do you know who this coat belong to?(whose)

->Do you know........................is?