Question

(×+1)(×+2) (a-3)(a+8)

Answer 1

1)

$= x {}^{2} + 3x + 2$

2)

$=a {}^{2} + 5a - 24$

Answer 2

Объяснение:

• х^+2х+х+2=х^2+3х+2
• а^2+8а-3а-24=а^2+5а-24

Answer 3

It seems like you want to expand the following expressions:

1. (x + 1)(x + 2)
2. (a - 3)(a + 8)

Let's expand each of them:

1. (x + 1)(x + 2):

   Use the distributive property (FOIL method):

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

So, (x + 1)(x + 2) expands to x^2 + 3x + 2.

2. (a - 3)(a + 8):

   Again, use the distributive property:

   (a - 3)(a + 8) = a(a) + a(8) - 3(a) - 3(8) = a^2 + 8a - 3a - 24 = a^2 + 5a - 24

So, (a - 3)(a + 8) expands to a^2 + 5a - 24.