Question

6х (4х-7) - 12 (2х²+1)​

Answer 1

Відповідь:

24x^2-42x-24x^2-12=0

42х=12

x=12/42=2/7

Answer 2

Ответ:

6(4×-9-4ײ)

............

Answer 3

To simplify the expression 6x(4x - 7) - 12(2x² + 1), you can use the distributive property to expand and then combine like terms. Here are the steps:

1. Distribute the 6x to both terms inside the first parentheses: 6x * 4x = 24x² 6x * (-7) = -42x

2. Distribute the -12 to both terms inside the second parentheses: -12 * 2x² = -24x² -12 * 1 = -12

Now, you have:

24x² - 42x - (-24x²) - (-12)

Note that when you subtract a negative, it becomes addition:

24x² - 42x + 24x² + 12

Now, combine like terms:

(24x² + 24x²) - 42x + 12

48x² - 42x + 12

So, the simplified expression is:

48x² - 42x + 12