Question

2³-5²=3(8а-4)+3а-5а=СРОЧНО!!​

Answer 1

Ответ:

2³-5²= -3

3(8а-4)+3а-5а=-3

Answer 2

Let's solve this step by step:

1. Calculate 2³ (2 cubed) which is 2 * 2 * 2 = 8.
2. Calculate 5² (5 squared) which is 5 * 5 = 25.

Now, we can simplify the expression:

2³ - 5² = 8 - 25 = -17

Next, you have an algebraic expression:

3(8a - 4) + 3a - 5a

Let's simplify this expression:

3(8a - 4) = 24a - 12

Now, combine like terms:

24a - 12 + 3a - 5a = (24a + 3a - 5a) - 12 = 22a - 12

So, the simplified expression is:

22a - 12

Now, if you want to find the value of this expression when a = -17:

22(-17) - 12 = -374 - 12 = -386

So, the final result is -386.