Giải giúp e câu này vs ạ e cảm ơn Phép tịnh tiến

Mong mn giúp mấy bài này ;-; B1: Rút gọn biểu thức: a, $(a + b + c)^{3}$ - $(b + c - a)^{3}$ - $(a + c - b)^{3}$ - $(a + b - c)^{3}$ b, $(a + b)^{3}$ + $(b + c)^{3}$ + $(a + c)^{3}$ - 3 (a + b) (b + c) (c + a) B2: CMR nếu ($a^{2}$ + $b^{2}$ + $c^{2}$) ($x^{2}$ + $y^{2}$ + $z^{2}$) = $(ax + by + cz)^{2}$ với x, y, z khác 0 thì $\frac{a}{x}$ = $\frac{b}{y}$ = $\frac{c}{z}$ B3: Cho $(a+b)^{2}$ = 2($a^{2}$ + $b^{2}$). CMR a = b

Ai giúp em câu trả lời với ạ, em đang gấp ạ Viết đoạn tầm 10-12 dòng ạ

He always ________ for a walk in the evening. A. is going B. goes C. going D. go

giúp mình vs ạ cảm ơn chước nghe mình cần gấp trong vòng 8p nhe

VIII Find the mistakes and correct: 1. A robot can builds houses, apartments and offices. A B C D 2. Scientists are working on how to invent a intelligent robot. A B C D 3. The children can work in groups when they were at school yesterday. A B C D 4. Children couldn’t stayed at home alone when they were 5 years old. A B C D 5. I don’t agree of you that a robot will be able to understand what people say. A B C D

vẽ anime nữ tâm trạng buồn , khóc NL: áp lực.......

Làm hộ mình nhanh với cần gấp lắm. Nhanh xong mình tick cho

(A-B)^2 = (B-A)^2 đúng hay sai v mn

-Dịch: 1. Qualities The lesson contributes to fostering in students qualities such as kindness, hard work, honesty, responsibility , ... through a number of specific manifestations as follows: - Show friendliness and harmony with friends; love and respect teachers; Respect the difference between you and everyone. - Know how to prepare learning materials and tools and actively participate in group activities. Do not arbitrarily use your colors, artwork and utensils without your consent. - Share honestly your thoughts and feelings, show your appreciation for your products and artwork, yours and others. 2. Capabilities : Lessons contribute to the formation and development of the following competencies: 2.1. Artistic ability - Recognize the shape and facial features of the students in the group/class. - Draw your portrait with available strokes and colors, initially know how to express your portrait characteristics at a simple level . - Share your feelings about your paintings; know about the application of portrait painting to life. 2.2. General Abilities - Autonomy and self-study capacity: Know and prepare enough tools and materials for learning, take initiative in learning activities. - Ability to communicate and cooperate: Know with you to exchange, discuss and comment on facial features and products, art works. - Ability to solve problems and create: Know how to use tools and paintings to practice creating products. 2.3. Other Special Ability - Language ability: Use the language to describe your face and exchange and share in learning. - Physical ability: manifested in hand activities in the skills of manipulating lines, shapes, colors , ...