Number of items, coefficient and times
The number of terms refers to each monomial in the polynomial. The coefficient refers to the number factor of the number of terms, and the degree refers to the letter index sum of the highest term in the polynomial
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- 1. -What is the coefficient of 15ab? What is the number of times and terms? What is the coefficient of a-2ab + B? What is the number of times and terms?
- 2. Please write all trinomials containing only the letters x, y and coefficients 2
- 3. XY is a monomial, and explain why. A single number or letter is also called a monomial, so is 1 a monomial?
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- 10. The operation of fraction in grade eight It is known that a is not equal to B, B is not equal to C, C is not equal to a, and a / (B-C) + B / (C-A) + C / (a-b) = 0 It is proved that a / (B-C) ^ 2 + B / (C-A) ^ 2 + C / (a-b) ^ 2 = 0
- 11. A monomial with the letters x, y and the coefficient is 2, the degree is 3, write out all the monomials satisfying its conditions
- 12. 1. If the N-1 power of (a + 1) 178; multiplied by X & # 178; multiplied by Y is the quintic monomial of X and y, the conditions that N and a should satisfy are obtained 2. If (a + 1) & # (178); multiply the square of 2a of X by the power of N-1 of Y is the quintic monomial of X and y, the conditions that N and a should satisfy are obtained
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- 17. Math problem: monomial! Use letters to represent numbers and translate the following written languages into symbolic languages The sum of two numbers with 1 being opposite to each other is 0 There is such a group of numbers: 3.6.9.12.., please indicate the nth number
- 18. 2 (2 minus x) plus 3 (4x minus 2) equals 7 (x plus 4),
- 19. What is fable famous for
- 20. Fable in my eyes Don't copy! To say from several aspects: the pursuit of truth, love for nature, the spirit of exploration, the pursuit of dreams... Write 2,3 on the line 350 words will do