Solve the problem of the first integer. 100,000 is in a hurry to take it in the afternoon. Give 1 po

7x+4y: The component terms are 7x, 4y; Coefficients: 7,4;Items:1,1,; is a polynomial.

2x +2x: The component is -2x 2,2x; Coefficients: -2,2;Items:

2，1；is a quadratic polynomial ab-a -1: the constituent terms are ab, -a 2, -1; Coefficients: 1,-1,-1;Items:

2，2，0；is a quadratic polynomial.

x 2-3x+a: the component term is x 2, -3x, a; coefficient 1,-3,a; Counts: 2, 1, 0; is a quadratic polynomial.

This quadratic trinomial is: 4x 2+x+7

7x+4y consists of 7x and 4y.

The coefficient of the 7x term is 7, and the number is 1

The coefficient of the 4y term is 4, and the number of times is 1

is a one-time polynomial.

2x²+2x

It consists of two two items, -2x and 2x.

The 2x term has a coefficient of -2 and a frequency of 2

The coefficient of the 2x term is 2, and the number of times is 1

is a quadratic polynomial.

ab-a²-1

It consists of ab, -a, and -1.

The ab coefficient is 1 and the number is 2

A has a coefficient of -1 and a frequency of 2

1 term is a constant term, the coefficient is -1, and the number is 0

is a quadratic polynomial.

x²-3x+a

It consists of x, -3x, and a.

The coefficient of the x term is 1, and the number of times is 2

The coefficient of the 3x term is -3, and the number of times is 1

A is a constant term, a coefficient of 1, and a frequency of 0

is a quadratic polynomial.

Let this quadratic trinomial formula about the letter x be ax +bx+c, since the quadratic term coefficient is 4, the primary term coefficient is 1, and the constant term is 7, then a=4, b=1, c=7

The formula is 4x +x+7

7x+4y has 2 terms, which are 7x and 4y, and the coefficients are 7, and the 4 degrees are 1, which is 1 time, and the 2nomials are 1.

2x +2x has 2 terms, which are -2x and 2x, and the coefficients are -2 and 2, respectively, and the degrees are 2 and 1, respectively, and are 2 times 2 nomials.

ab-a-1 has 3 terms, which are ab, -a and -1 coefficients are 1, -1 and -1 are 1, and the times are 1, 2 and 1 are 2 times 3nomial.

x -3x+a has 3 terms, which are x, 3x, and a, and the coefficients are 1, -3, and 1, respectively, and the degrees are 2, and 1 and 1 are 2 times, and the 3nomials are 2.

4x²+x+7

Note: Small stands for 2

Little Red House: a*b-2*squared.

Xiaolan's house: a* squared.

<> if it solves your problem, remember.

"Addition and Subtraction of Whole Formulas" full chapter test questions.

1. Fill in the blanks. (3 marks per question, 30 marks in total).

1. Algebraic formula: (1) 3;（2） ；3） ；4）－

5) In x+1, the monomial is: (write ordinal number).

The polynomial is: (write ordinal number).

The integers are: (write the ordinal number).

2. The coefficient of the mononomial is , and the degree is

3. The polynomial is a minor term, and the highest order term is a constant term is 4. Calculation: Calculation:

5、"The difference between the square and 2"It is expressed algebraically as

6. The result of simplifying 3 2 (3) is

7. And is the same kind of term, then

8. The value of the algebraic formula 2x 3y is 4, then the value of 3+6x+9y is.

9. The upper right figure is a numerical converter, if the input x is 5, the output result is

10. Do you like to eat ramen? The master of the ramen restaurant uses a very thick noodle to knead the two ends together and stretch it, then knead it, stretch it again, and repeat it several times, and then pull this very thick noodle into many thin noodles, as shown in the sketch below. After kneading this time, you can pull out 64 thin noodles.

17：a=1

18: m = minus one-half.

n=—119：m =5

n=620 : -5a to the fifth power -6a to the negative sixth power.

2013a2013 power 2014a minus 2014 power.

n = odd nnn power.

n = even nn minus n to the power.

I haven't done the first math for a long time, I don't include it, the process is slowly pushed, it's good for learning, and also, which school are you.