Question

3x-|4x-11|при x=-6 5x+8•|-x-12| при x=-2 4x-4•|-x+5| при x=7 -2x-4•|-x-2|-5 при x=-3

Answer 1

Пошаговое объяснение:

3х - |4х - 11| = -53

х = -6

3 * (-6) - |4*(-6) - 11| = -18 - |-24 - 11| = -18 - |-35| = -18 - 35 = -53

5х + 8 * |-х - 12| = 70

х = -2

5 * (-2) + 8 * |2 - 12| = -10 + 8 * |-10| = -10 + 8 * 10 = -10 + 80 = 70

4х - 4 * |-х + 5| = 20

х = 7

4 * 7 - 4 * |-7 + 5| = 28 - 4 * |-2| = 28 - 4 * 2 = 28 - 8 = 20

-2х - 4 * |-х - 2| - 5 = 2

х = -3

-2 * (-3) - 4 * |3 - 2| - 5 = 6 - 4 * |1| = 6 - 4 * 1 = 6 - 4 = 2

Answer 2

To evaluate these expressions at the given values of x, simply substitute the given x-values into each expression and perform the calculations. Here are the results:

1. For the expression 3x - |4x - 11| when x = -6:

   3(-6) - |4(-6) - 11| -18 - |-24 - 11| -18 - |-13| -18 - 13 -31

2. For the expression 5x + 8 * |-x - 12| when x = -2:

   5(-2) + 8 * |-(-2) - 12| -10 + 8 * |2 - 12| -10 + 8 * |-10| -10 + 80 70

3. For the expression 4x - 4 * |-x + 5| when x = 7:

   4(7) - 4 * |-(7) + 5| 28 - 4 * |7 - 5| 28 - 4 * |2| 28 - 8 20

4. For the expression -2x - 4 * |-x - 2| - 5 when x = -3:

   -2(-3) - 4 * |-(-3) - 2| - 5 6 - 4 * |-(-3) - 2| - 5 6 - 4 * |-3 - 2| - 5 6 - 4 * |-5| - 5 6 - 20 - 5 -19

So, the results are as follows:

1. -31
2. 70
3. 20
4. -19