Question

Решите пж: х(3-5х) при х=-3

Answer 1

Ответ:

-54

Объяснение:

-3×(3-5×(-3))=-3×(3+15)=-9-45=-54

Answer 2

Дана функция:

$f(x) = x(3 - 5x)$

Найдём значение функции в точке -3:

$f( - 3) = - 3(3 - 5( - 3)) = - 3 \times18 = - 54$

Ответ: -54

Answer 3

To solve the expression, we substitute the value of x with -3 and simplify:

x(3 - 5x) when x = -3

Substituting x = -3:

-3(3 - 5(-3))

Simplifying the expression inside the parentheses first:

-3(3 + 15)

Next, simplify the expression inside the parentheses:

-3(18)

Finally, perform the multiplication:

-54

Therefore, when x = -3, the value of the expression x(3 - 5x) is -54.