Question

-x - 1 4-5x при x=0 3

Answer 1

-х-14-5х=

= -0.3-14-1.5= -15.8

Answer 2

$- x - 14 - 5x \\ - 0.3 - 14 - 1.5 = - 15.8$

Answer 3

To evaluate the expressions -x - 1 and 4 - 5x at the given values of x (x = 0 and x = 3), simply substitute the values of x into the expressions and perform the calculations.

1. For x = 0:

a) Evaluate -x - 1: -x - 1 = -(0) - 1 = -1

b) Evaluate 4 - 5x: 4 - 5(0) = 4 - 0 = 4

So, when x = 0:

• x - 1 = -1 4 - 5x = 4

2. For x = 3:

a) Evaluate -x - 1: -3 - 1 = -4

b) Evaluate 4 - 5x: 4 - 5(3) = 4 - 15 = -11

So, when x = 3:

• x - 1 = -4 4 - 5x = -11

To summarize:

• When x = 0: -x - 1 = -1 4 - 5x = 4

• When x = 3: -x - 1 = -4 4 - 5x = -11