Question

1) (-8 -a) (b +2) 2) (-7 -b) (a-7) 3) (3+x) (-1 -x) 4) (x-10) (-x -6) 5) (3a -2b) (2a -3b) 6) (15a +27) (-5a-9) умножение многочлена на многочлен

Answer 1

Решение на фотографии

Answer 2

To multiply polynomials, you need to apply the distributive property and combine like terms. Let's go through each expression step-by-step:

1. (-8 - a) (b + 2)

Expand the expression:

(-8 - a) (b + 2) = -8b - 16 - ab - 2a

2. (-7 - b) (a - 7)

Expand the expression:

(-7 - b) (a - 7) = -7a + 49 + 7b - ab

3. (3 + x) (-1 - x)

Expand the expression:

(3 + x) (-1 - x) = -3 - 3x - x + x^2 = -3 - 4x + x^2

4. (x - 10) (-x - 6)

Expand the expression:

(x - 10) (-x - 6) = -x^2 - 6x + 10x + 60 = -x^2 + 4x + 60

5. (3a - 2b) (2a - 3b)

Expand the expression:

(3a - 2b) (2a - 3b) = 6a^2 - 9ab - 4ab + 6b^2 = 6a^2 - 13ab + 6b^2

6. (15a + 27) (-5a - 9)

Expand the expression:

(15a + 27) (-5a - 9) = -75a^2 - 135a - 45a - 243 = -75a^2 - 180a - 243

These are the results of multiplying each pair of polynomials. Make sure to double-check the expressions for any errors.