Question

Номер 570 алгебра 7 класс 1)(а+8)2)(b-2)3)(7+c)²4)(6-d)²5)(2m+1)²6)(4x-3)²7)(5m-4n)²8)(10c+7d)²9)(4x-1y)² 8там ещё 6 примеров срочно!!!​

Answer 1

Пошаговое объяснение:

1) а+8

2)б-2

3)49+17с+с²

4)36-12д+д²

5)4м²+4м+1

6)16х²-24х+9

7)25м2-40мн+16н²

8)100с²+140сд+49д²

9)16х²-8ху+1у²

Answer 2

Algebraic Expressions for Class 7

In the given problem, we have a list of algebraic expressions for which we need to find the square of each expression. Let's calculate the square of each expression:

1) Square of (a + 8): - The square of a binomial expression (a + b) is given by the formula: (a + b)² = a² + 2ab + b². - Therefore, the square of (a + 8) is: a² + 2 * a * 8 + 8². - This simplifies to: a² + 16a + 64.

2) Square of (b - 2): - Using the same formula, the square of (b - 2) is: b² - 2 * b * 2 + 2². - This simplifies to: b² - 4b + 4.

3) Square of (7 + c): - The square of (7 + c) is: 7² + 2 * 7 * c + c². - This simplifies to: 49 + 14c + c².

4) Square of (6 - d): - Similarly, the square of (6 - d) is: 6² - 2 * 6 * d + d². - This simplifies to: 36 - 12d + d².

5) Square of (2m + 1): - The square of (2m + 1) is: (2m)² + 2 * 2m * 1 + 1². - This simplifies to: 4m² + 4m + 1.

6) Square of (4x - 3): - The square of (4x - 3) is: (4x)² - 2 * 4x * 3 + 3². - This simplifies to: 16x² - 24x + 9.

7) Square of (5m - 4n): - The square of (5m - 4n) is: (5m)² - 2 * 5m * 4n + (4n)². - This simplifies to: 25m² - 40mn + 16n².

8) Square of (10c + 7d): - The square of (10c + 7d) is: (10c)² + 2 * 10c * 7d + (7d)². - This simplifies to: 100c² + 140cd + 49d².

9) Square of (4x - 1y): - The square of (4x - 1y) is: (4x)² - 2 * 4x * 1y + (1y)². - This simplifies to: 16x² - 8xy + y².

For the remaining 6 examples, please provide the specific expressions, and I'd be happy to calculate their squares as well.