Question

Найдите значение выражений 1) |-25|+|-18| 2)|-25+18| 3) |x|=6 Распешите подробнее пж

Answer 1

Ответ:

1)|-25|+|-18|=25+18=43

2)|-25+18|=25+18=43

3)|х|=6 х=6

Answer 2

Ответ:

Модуль всегда число положительное

1) |-25|+|-18|=25+18=43

2) |-25+18|=|-7|=7

3) |x|=6

Х имеет 2 значения :

Х1=6

Х2=-6

Answer 3

1. |-25| + |-18|

The absolute value of a number is its distance from zero on the number line. For any real number x, the absolute value of x is denoted as |x|.

To solve the expression |-25| + |-18|, we need to find the absolute values of -25 and -18, and then add them together.

|-25| = 25 (since the absolute value of -25 is 25) |-18| = 18 (since the absolute value of -18 is 18)

Therefore, |-25| + |-18| = 25 + 18 = 43.

2. |-25 + 18|

To solve the expression |-25 + 18|, we need to simplify the expression within the absolute value bars first.

-25 + 18 = -7

Now, we find the absolute value of -7.

|-7| = 7 (since the absolute value of -7 is 7)

Therefore, |-25 + 18| = 7.

3. |x| = 6

This equation states that the absolute value of x is equal to 6. To find the possible values of x, we consider two cases: x can be positive or negative.

Case 1: x is positive If x is positive, then |x| is equal to x itself. So, we have x = 6.

Case 2: x is negative If x is negative, then |x| is equal to -x. So, we have -x = 6. To solve for x, we multiply both sides of the equation by -1, which gives us x = -6.

Therefore, the solutions to the equation |x| = 6 are x = 6 and x = -6.