Question

Раскройте скобки ,применив формулы сокращённого умножения. 50Б
(a – b)2
(n – m)2
(с – 5)2
(p – q)2
(2m – n)2
(2a – 8)2
(6 – 3b)2
(5k – 0,3)2
(q – 0,1)2
(0,7 – x)2
(6 – 2b)2
(x – 3y)2
(2х – 5)2
(11 – d)2
(7а – 4в)2
( x – y)2
(a – b)2
(0,1х – 10у)2
(13а – 1)2
(0,8х – 5)2
(с4 – 7)2
(3a – b3)2
(4a2 – b)2
(x5 – 2)2
(6x – 2y)2
(8b – 9a)2
(0,5a – 30b)2
(0,2x – 0,6y)2
(n - m)(n + m)
(x - y)(x + y)
(a + b) (a - b)
(2 - a)(a + 2)
(3 - x)(3 + x)
(a - 7)(7 + a)
(p + 5) (p - 5)
(8c – 9d)(8c + 9d)
(n - 3m)(n + 3m)
(7x – 3y)(7x + 3y)
(5n - 8m)(5n + 8m)
(x + 2y) (x – 2y)
(x2 + 5) (x2 - 5)
(a - 1)(a + 1)
(10 - x)(10 + x)
(c - 4)(c + 4)
(3a - 1)(3a + 1)
(6n - 8)(6n + 8)
(9p - q)(9p + q)
(7 - 5m)(7 + 5m)
(4 + 3m) (3m - 4)
(b- 5a)(5a + b)
(x – 0,5)(x + 0,5)
(0,3 + 2b) (0,3 – 2b)
(x – 0,6)(0,6 + x)
(10a - b)(b + 10a)
(0,1 - m)(0,1 + m)
(4n - 2m)(4n + 2m)
(0,9c - m)(0,9c + m)

Answer 1

(a – b)2=а^2-2ab+b^2

(n – m)2=n^2-2mn+m^2

(с – 5)2=c^2-10c+25

(p – q)2=p-2pq+q^2

(2m – n)2=4m^2-4mn-b^2

(2a – 8)2=4a^2-32a+64

(6 – 3b)2=36-36a+9b^2

(5k – 0,3)2=25k-3k+0,09

(q – 0,1)2=q-0,2q+0,01

(0,7 – x)2=0,49-1,4x+x^2

(6 – 2b)2=36-24b+4b^2

(x – 3y)2=x^2-6xy+9y^2

(2х – 5)2=4x^2-20x+25

(11 – d)2=121-22d+d^2

(7а – 4в)2=49a^2-56ab+16b^2

( x – y)2=x^2-2xy+y^2

(a – b)2=а^2-2ab+b^2

(0,1х – 10у)2=0,01x^2-2xy+100y^2

(13а – 1)2=169a^2-26a+1

(0,8х – 5)2=0,64x^2-8x+25

(с4 – 7)2=c^8-14c^2+49

(3a – b3)2=9а^2-6аb^3+b^9

(4a2 – b)2=16a^4-8a^2b+b^2

(x5 – 2)2=x^10-4x^5+4

(6x – 2y)2=12x^2-24xy+4y^2

(8b – 9a)2=64b^2-144ab+81a^2

(0,5a – 30b)2=0,25a^2-30ab+900b^2

(0,2x – 0,6y)2=0,04x^2-0,24xy+0,36y^2

(n - m)(n + m)=n^2-n^2

(x - y)(x + y)=x^2-y^2

(a + b) (a - b)=a^2-b^2

(2 - a)(a + 2)=4-a^2

(3 - x)(3 + x)=9-x^2

(a - 7)(7 + a)=a^2-49

(p + 5) (p - 5)=p^2-25

(8c – 9d)(8c + 9d)=64c^2-81d^2

(n - 3m)(n + 3m)=n^2-9m^2

(7x – 3y)(7x + 3y)=25n^2-64m^2

(5n - 8m)(5n + 8m)=25n^2-64m^2

(x + 2y) (x – 2y)=x^2-4y^2

(x2 + 5) (x2 - 5)=x^4-25

(a - 1)(a + 1)=a^2-1

(10 - x)(10 + x)=100-x^2

(c - 4)(c + 4)=c^2-16

(3a - 1)(3a + 1)=9a^2-1

(6n - 8)(6n + 8)=36n^2-64

(9p - q)(9p + q)=81p^2-q^2

(7 - 5m)(7 + 5m)=49-25m^2

(4 + 3m) (3m - 4)=9m^2-16

(b- 5a)(5a + b)=b^2-25a^2

(x – 0,5)(x + 0,5)=x^2-0,25

(0,3 + 2b) (0,3 – 2b)=0,09-4b^2

(x – 0,6)(0,6 + x)=x^2-0,36

(10a - b)(b + 10a)=100a^2-b^2

(0,1 - m)(0,1 + m)=0,01-m^2

(4n - 2m)(4n + 2m)=16n^2-4m^2

(0,9c - m)(0,9c + m)=0,81c^2-m^2