Пожалуйста. Формулы сокращенного умножения
1. (0,3-m)²
2. 8ab+b²+16a²
3. (4+y²)(y²-4)
4. 1+27y³
5. (y+9)²
6. 9x² –xy+ 1/36y²
7. (8c+9d)(9d-8c)
8. c³-d³
9. 100x²+y²+20xy
10 .81-c²
1. (0,3-m)²
2. 8ab+b²+16a²
3. (4+y²)(y²-4)
4. 1+27y³
5. (y+9)²
6. 9x² –xy+ 1/36y²
7. (8c+9d)(9d-8c)
8. c³-d³
9. 100x²+y²+20xy
10 .81-c²
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Answers & Comments
2.(4a+b)^2
3.y^4-16
4.(1+3y)(1-3y+9y^2)
5.y^2+18y+81
6.(3-1/6)^2
7.81d^2-64c^2
8. (c-d)(c^2+cd+ d^2)
9. (10x+y)^2
10.(9-c)(9+c)