Question

1) (a – 2) (b + 5); 7) (–2m – 3) (5 – m); 2) (m + n) (p – k); 8) (5x2 – x) (6x2 + 4x); 3) (x – 8) (x + 4); 9) (–c – 4) (c3 + 3); 4) (x – 10) (x – 9); 10) (x – 5) (x2 + 4x – 3); 5) (c + 5) (c + 8); 11) (2a + 3) (4a2 – 4a + 3); 6) (3y + 1) (4y – 6); 12) a (5a – 4) (3a – 2).

Answer 1

Відповідь:

1)(a - 2)(b + 5) = ab + 5a - 2b - 10

2)(m + n)(p - k) = mp - nk + np - km

3)(x - 8)(x + 4) = x^2 - 4x + 32

4)(x - 10)(x - 9) = x^2 - 19x + 90

5)(c + 5)(c + 8) = c^2 + 13c + 40

6)(3y + 1)(4y - 6) = 12y^2 - 10y - 6

7)(-2m - 3)(5 - m) = -10m^2 + 7m - 15

8)(5x^2 - x)(6x^2 + 4x) = 30x^4 + 18x^3 - 4x^3 - 4x^2

9)(-c - 4)(c^3 + 3) = -c^4 - 3c^3 - 4c - 12

10)(x - 5)(x^2 + 4x - 3) = x^3 - x^2 + 19x - 15

11)(2a + 3)(4a^2 - 4a + 3) = 8a^3 - 4a^2 + 3a + 9

12)a(5a - 4)(3a - 2) = 15a^3 - 10a^2 + 8a

Answer 2

It seems like you have provided a mathematical expression with multiple operations and variables. Let's break it down step by step:

1) (a – 2) + (b + 5) This expression involves addition and subtraction of variables a and b.

2) 7 + (–2m – 3) + (5 – m) This expression involves addition and subtraction of variables m.

3) 2 + (m + n) + (p – k) This expression involves addition and subtraction of variables m, n, p, and k.

4) 8 + (5x2 – x) + (6x2 + 4x) This expression involves addition, subtraction, and multiplication of variable x.

5) 3 + (x – 8) + (x + 4) This expression involves addition and subtraction of variable x.

6) 9 + (–c – 4) + (c3 + 3) This expression involves addition, subtraction, and exponentiation of variable c.

7) 4 + (x – 10) + (x – 9) This expression involves addition and subtraction of variable x.

8) 10 + (x – 5) + (x2 + 4x – 3) This expression involves addition, subtraction, and multiplication of variable x.

9) 5 + (c + 5) + (c + 8) This expression involves addition and subtraction of variable c.

10) 11 + (2a + 3) + (4a2 – 4a + 3) This expression involves addition, subtraction, and multiplication of variable a.

11) 6 + (3y + 1) + (4y – 6) This expression involves addition and subtraction of variable y.

12) 12 + a + (5a – 4) + (3a – 2) This expression involves addition and subtraction of variable a.

Please note that without specific values assigned to the variables, I can only provide a breakdown of the operations involved in the expression. If you have specific values for the variables, I can help you evaluate the expression further.