Question

5⋅x−3⋅(10⋅x+6) при x=12.​

Answer 1

Ответ:

-318

Пошаговое объяснение:

5x-3(10x+6) = 5x-30x-18 = -25x-18 при x = 12

-25*12-18 = -300-18 = -318

Answer 2

Ответ:

Пошаговое объяснение:

5х - 3(10х+6)

5х-30х-18

-25х-18

(-25*12)-18= - 318

Answer 3

To evaluate the expression 5x - 3(10x + 6) when x = 12, you simply substitute the value of x into the expression and then perform the calculations.

Given: x = 12

Expression: 5x - 3(10x + 6)

Substitute the value of x: 5(12) - 3(10(12) + 6)

Now perform the calculations within the parentheses first: 5(12) - 3(120 + 6)

Calculate the values within the parentheses: 60 - 3(126)

Now calculate the multiplication within the second set of parentheses: 60 - 378

Finally, subtract 378 from 60: -318

So, when x = 12, the value of the expression 5x - 3(10x + 6) is -318.