Question

15- 2х при х = -6, х (в кубе 2) -20 при х=5, 40-а при а=12

Answer 1

15-2*(-6)= 15+12= 27

5²-20= 25-20= 5

40-12= 28

Answer 2

To evaluate the given expressions, simply substitute the given values for the variables:

1. For x = -6: 15 - 2x = 15 - 2(-6) = 15 + 12 = 27

2. For x = 5: x³ - 2 = 5³ - 2 = 125 - 2 = 123

3. For a = 12: 40 - a = 40 - 12 = 28

So, the results are:

1. 15 - 2x = 27
2. x³ - 2 = 123
3. 40 - a = 28