Question

|2х-5|+6х при х = -8

Answer 1

Модуль числа 2*(-8)-5 равен плюс 21

21+6*(-8)=21-48=-27

Ответ  -27

Answer 2

|2(-8)-5|+6(-8)= |-16-15|-48= |-21|-48= 21-48= -27

Answer 3

To find the value of the expression |2x - 5| + 6x when x = -8, we'll substitute -8 for x and perform the calculation step-by-step:

Step 1: Substitute x = -8 into the expression: |2(-8) - 5| + 6(-8)

Step 2: Simplify the expression inside the absolute value: |-16 - 5| + 6(-8)

Step 3: Perform the subtraction inside the absolute value: |-21| + 6(-8)

Step 4: Calculate the absolute value: |21| + 6(-8)

Step 5: Evaluate the absolute value (the absolute value of a positive number is the number itself): 21 + 6(-8)

Step 6: Perform the multiplication: 21 - 48

Step 7: Finally, do the subtraction: -27

So, when x = -8, the value of the expression |2x - 5| + 6x is -27.