Question

-0,4x+2 и -0,4x-2 при x=10

Answer 1

-0,4×10+2=-4+2= -2

-0,4×10-2=-4-2= -6

Answer 2

To find the values of the expressions -0.4x + 2 and -0.4x - 2 when x is equal to 10, simply substitute x with 10 and perform the calculations:

1. For -0.4x + 2: Replace x with 10: -0.4 * 10 + 2 Calculate: -4 + 2 Result: -2

2. For -0.4x - 2: Replace x with 10: -0.4 * 10 - 2 Calculate: -4 - 2 Result: -6

So, when x is equal to 10:

• The value of -0.4x + 2 is -2.
• The value of -0.4x - 2 is -6.