Question

Найдитезначение выражения (8b-8)(8b+8)-8b(8b+8)при b= 2,6​

Answer 1

Ответ:

-230.4

Пошаговое объяснение:

вынесем 8b+8 за скобки, далее приведем подобные слагаемые и подставим вместо b 2,6

(8b+8)(8b-8-8b)= -8*8(b+1)= -64(2.6+1)= -230.40

Answer 2

• Ответ: -230.4

1. (8b+8)(8b-8-8b)=-8*8(b+1)=-64(2.6+1)=-230.40

Answer 3

To find the value of the expression (8b-8)(8b+8) - 8b(8b+8) when b = 2.6, follow these steps:

Step 1: Replace b with 2.6 in the expression. Step 2: Perform the calculations.

Let's proceed:

Step 1: (8b-8)(8b+8) - 8b(8b+8)

Replace b with 2.6:

(8 * 2.6 - 8)(8 * 2.6 + 8) - 8 * 2.6 (8 * 2.6 + 8)

Step 2: Now, perform the calculations:

(20.8 - 8)(20.8 + 8) - 8 * (20.8 + 8)

(12.8)(28.8) - 8 * 28.8

368.64 - 230.4

138.24

So, the value of the expression (8b-8)(8b+8) - 8b(8b+8) when b = 2.6 is 138.24.