Given the polynomial P= x^2 + ax +b. Find the values of a and b such that b has 2 roots that are 2 and 3.
a= -5 and b = -1
a= -1 and b = -6
a= 1 and b = 1
a= -5 and b = 6
(giải giùm mình nha các bạn)
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Giả sử f (x) là một đa thức của x.Nếu f (x) có 3 phần còn lại khi chia cho 2 (x-1) và 2f (x) có phần còn lại của -4 khi chia cho 3 ( x + 2) .Vì khi 3f (x) được chia cho 4 ( x 2 + x - 2 x2 + x-2), phần còn lại là ax + b, trong đó a và b là hằng số. Sau đó a + b = ...............
Fill in the blanks with a suitabe word. The first letter of the word is already given.
My school has a large library. There are three(1) librarians to help students find (2 )books . In the library , there are a lot of science books such as ( 3) chemistry, (4) physics, (5) biology, (6) maths Besides, there are many English with geography and history books on. english books are so plentiful. There are many English Vietnamese (8) dictionaries. . There are many (9) magazines and (10) newspapers too.
3x=5y
=>x/5=y/3
=>2x/10=3y/9=2x-3y/10-9=5/1=5(tính chất dãy tỉ số bằng nhau)
Choose the word (A,B,C or D) that best fits each of the blank spaces.
Lan's school has a library. It is one of the (1)......... libraries in the city. It contains over 50 thousands books. You can find all (2)........... books, magazines and newspapers here. The library also (3)........... a large and comfortable study area. It opens (4).......... 7 o'clock in the morning and closes at 4.30 in the evening. Miss Lien and Miss Hoa are (5).........., they always help students to find books. Lan's house is not far from her school, so she goes to the library every afternoon. She likes reading books (6).......... they are helpful and interesting.
1. A. large B. larger C. largest D. most largest
2. A. of kinds B. kinds of C. kinds D. a lot of
3. A. is B. are C. has D. have
4. A. from B. till C. to D. at
5. A. librarians B. musicians C. captains D. teachers
6. A. but B. because C. and D. either
Choose the word (A,B,C or D) that best fits each of the blank spaces.
Lan's school has a library. It is one of the (1)......... libraries in the city. It contains over 50 thousands books. You can find all (2)........... books, magazines and newspapers here. The library also (3)........... a large and comfortable study area. It opens (4).......... 7 o'clock in the morning and closes at 4.30 in the evening. Miss Lien and Miss Hoa are (5).........., they always help students to find books. Lan's house is not far from her school, so she goes to the library every afternoon. She likes reading books (6).......... they are helpful and interesting.
1. A. large B. larger C. largest D. most largest
2. A. of kinds B. kinds of C. kinds D. a lot of
3. A. is B. are C. has D. have
4. A. from B. till C. to D. at
5. A. libraries B. musicians C. captains D. teachers
6. A. but B. becausu C. and D. either