Question

Решить.y=3x²-4 для значення фунції х=-3

Answer 1

Ответ: у=3*9-4=27-4=23. Всё просто.

Пошаговое объяснение:

Answer 2

To find the value of the function y = 3x² - 4 for the given value of x = -3, we simply need to substitute -3 in place of x and calculate the corresponding value of y.

y = 3(-3)² - 4

Now, follow the order of operations (PEMDAS/BODMAS):

1. First, calculate the square of -3: (-3)² = (-3) * (-3) = 9

2. Next, multiply the result by 3: 3 * 9 = 27

3. Finally, subtract 4 from the previous result: 27 - 4 = 23

So, when x = -3, the value of the function y = 3x² - 4 is 23.