Factorization factor (x + y) (x + y + 2XY) + x ^ 2Y ^ 2-1

Original formula = (x + y) ^ 2 + 2XY (x + y) + (XY) ^ 2-1
=(x+y+xy)^2-1
=(x+y+xy-1)(x+y+xy+1)
=(xy+x+y-1)(x+1)(y+1)

RELATED INFORMATIONS

1. The solution of the following equation is obtained by using the function image and checked by written calculation （1）5x-1=2x+5；(2)-1/2x+4=3/2x+2
2. For a two digit number, the new two digit number is 47 times of the original number after exchanging the number of its ten digits with the number of its individual digits. What is the original two digit number? How many double digits are there?
3. 1, can calculate simply to calculate 25 + 68 + 75 + 322, solve the equation. 4 + 1 / 5x = 26
4. A question about the principle of computer composition A question about the principle of Computer Organization Suppose the machine word length is 16 bits. For fixed-point representation, the numerical value is 15 bits and the sign bit is 1 bit; for floating-point representation, the rank code is 6 bits and the mantissa is 10 bits, each including 1 sign bit; the bottom of the rank code is 2 1. What are the maximum integer and the minimum negative number when representing the fixed-point original code integer? 2. What are the maximum integer and the minimum negative number in the decimal representation of fixed-point original code? It's better to write in detail, the teacher let me go up next class, but I can't, Wuwu~ I've given you all my marks. I must study hard in the future~
5. Let f (x) = {SiNx x ≥ 0, find f (0), f (π / 2), f (- π / 2) x & # 178; + 1 x < 0 Help me when you are free Let F X = {SiNx x ≥ 0 X & # 178; + 1 = 0} find f (0) f (π / 2) f (- π / 2)
6. It is known that the sequence {an} is the arithmetic sequence, and the sequence {BN} is the proportional sequence, whose common ratio Q ≠ 1 and Bi ＞ 0 (I = 1, 2, 3,...) If A1 = B1, a11 = B11, then () A. A6 = b6b. A6 > b6c. A6 < b6d. A6 > B6 or A6 < B6
7. Given that the standard deviation of x1, X2, X3 is 5, then the variance of data 2x1 + 3, 2x2 + 3, 2x3 + 3 is 5
8. Calculation method of space vector
9. As shown in the figure, it is known that in △ ABC, D is the midpoint of AB, e is the point on AC, and ∠ Abe = ∠ BAC, EF ‖ AB, DF ‖ be. Please guess the relationship between DF and AE, and explain the reason
10. In the number axis, the point with larger distance from the origin is in the
11. 2X multiplied by 6 minus 24 equals 12 plus 3x
12. Calculation: the first (3Y & # 178;), # 179; - 5Y & # 178; [the fourth power of 2Y - Y (3y-1 / 5)]; Second: given X & # 178; - 2x = 2, simplify the following formula first, and then evaluate: (x-1) &# 178; + (x + 3) (x-3) + (x-3) (x-1) Third: Factorization factor: 2x & # 178; + 2xy-3x-3y;
13. Solution equation: 3.5 (X-5) + 0.5x = 4.25 (x is unknown)
14. Solving inequality system: 3 / 2x-2
15. In the fifth power of the polynomial ax plus the third power of BX minus 3, when x is equal to 3, the polynomial is 5, and when x is equal to negative 3, the value of the polynomial is obtained
16. Try to discuss the relationship between the straight line X-my + 2 = 0 and the circle x ^ 2 + y ^ 2 = 4 according to the value of M
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18. A triangle can be formed by three line segments with length of 3M, 5M and 16 (M > 0)
19. It is known that, as shown in the figure, in the trapezoidal ABCD, ad ‖ BC, let ad = vector a, BC = vector B, e and f respectively on the waist AB and DC, and AE: be = DF: CF = 1:2 (1) Using the linear combination of vectors a and B to represent vector ef (2) Is EF parallel to ad? Why? (3) If ad = m, BC = n, find the length of EF
20. Fourth grade volume I mathematics exercise book page 23 answers