user-avatar
an2022
2 năm trước
a, 5x.( 4x²-2x+1) -2x.( 10x²-5x-2) với x=15 b, 5x.(x-4y) -4y.(y-5x) với x= -1/5, y= -1/2 c, 6xy. ( xy-y²) -8x².(x-y²) +5y².( x²-xy) với x=1/2, y=2 Mọi người giúp mình với mình không biết làm =((
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

III. Put the verbs in brackets into the correct form. 1. While Tim (drive)______________ to work, he had a wonderful idea. 2. We ( not meet) ______________ since last year. 3. Would you mind if I (turn) ______________ on the TV? 4. I (do) ______________ my homework between 8 and 9 pm last night. IV. Reorder the words to make complete sentences: 1. always / she / watching / is / TV / . ................................................................................................. 2. have / I / already / done / my / homework / . ................................................................................................. V. Rewrite the sentences so that they have the same meaning as the original ones. 1. We will invite some old teachers to our class meeting. Some old teachers ________________________________ 2. “I can do this test”, he said. He said ________________________________________ IV. Supply the correct Tense or Form of the Verbs in parentheses: (1 pt) 1. She told me that her mother (buy)_______ that house the following week. 2. The teacher asked Peter why he (not/ answer)______ her question. 3. Are they used to (go) fishing on this weekend? 4. If the boy (get) _______ good marks next summer, he must study harder.

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team