7 класс Формулы сокращенного умножения

1

(x+y)²

(b+3)²

(a+12)²

(y-9)²

2

4x²+12x+9

25b²+10b+1

a ²+12a+36

1+y²-2y

3

(x-y)(x+y)

(2a-3b)(3b+2a)

(8b+5a)(5a – 8b)

(10x – 7y)(10x+7y)

4

x² - y²

b² –

a² – 25

y² – 0,09

5

x³ – y³

1+b³

125+a³

y³ - 1

6

(p-q)²

(10-c)²

(15 – x)²

(40+b)²

7

25a²+10a+1

81a² – 18ab+b²

9a² – ab+b²

64 – 16b+b²

8

(4+y²)( y²-4)

(5x²+2y³)(5x²-2y³)

(p – 7)(p+7)

(7x -2)(2+7x)

9

25x² – y²

-49a²+16b²

144b² – c²

p² –a²b²

10

(-a-2)²

(-3-b)²

(-x-y)²

(-12 – c)²

11

m³ – n³

125 – a³

1+b³

x³+y³

12

(9 –y)²

(0,3 – m)²

(m+n)²

(8 –a)²

13

4a²+b² – 4ab

8ab+b²+16a²

b²+9a² – 6ab

9x² – 24xy +16y²

14

(9a – b²)(b²+9a)

(4+y²)( y²-4)

(7+3y)(3y-7)

(8c+9d)(9d – 8c)

15

8 – a³

1+27y³

x³ - 64

m³+1000

16

(b+3)²

(y+9)²

(m- 0,3)²

(a – 25)²

17

1+x² – 2x

9x² – xy+y²

64 – 16a+a²

m²+2mn+n²

18

(2x – 1)(2x+1)

(8c+9d)(9d – 8c)

(8b+5a)(8b – 5a)

(c+d)(c – d)

19

125a³ – 64b³

c³ – d³

27 – y³

1 – c³

20

(k+0,5)²

(40 + b)²

(0,2 – x)²

(x – 2y)²

21

28xy+49x²+4y²

100x²+y²+20xy

a²+4b² – 2ab

1 – 2x+x²

22

(7x – 2)(7x+2)

(c-7)(7+c)

(4+k)(k – 4)

(a-b)(b+a)

23

1 - p³

a³+b³

c³ + 27d³

x³ – y³

24

(-a -1)²

(-b-2)²

(-c-10)²

(-x-12)²

25

(a+1)³

(a+2)³

(1+a)³

(2+b)³

26

(2 – a)³

(b – 1)³

(c-2)³

(1-d)³