a. 45 - 24.....17 + 10 24 + 35.....56 - 36 6 + 4.......7 + 2 b. 32 + 16......20 + 28 37 - 17......56 - 36 10 - 2........10 - 1làm cho anh

"Những hằng đẳng thức đáng nhớ": 1. Tính: a, (x+5)^2 b, (3x-2)^2 c, (4x-1).(4x+1) d, (x-3).(x+3) CTLHN luôn @@!!!

Mọi người giúp em hai bài này với ạ

A lot of vs lots of dùng is hay are

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"Những hằng đẳng thức đáng nhớ": 1, Tính (bỏ dấu ngoặc) a, (x+2y)^2 b, (3x-1).(3x+1) c, (2x-y)^2 d, (1/2x+y).(1/2x-y) CTLHN luôn @@

Làm giúp mình vs mọi người Cảm ơn!!!!!

Giúp mik câu 2 nha mn hứa vote 5 saoo lun

Giúp mik câu 1 vs ạ hứa vote 5 sao

IX. Finish the sentences in such a way that it means the same as the given one 41. The children should not stay up late -> The children ought to…………………………………………………………………………….. 42. How high is the Big Ben Clock Tower? -> What is……………………………………………………………………………………………. 43. How long is the Mekong River? -> What is…………………………………………………………………………………………….. 44. I haven’t seen her at this club before -> This is the first time I …………………………………………………………………………….. 45. Bill last called me five days ago -> Bill hasn’t………………………………………………………………………………………….