R.2.95 Let x = -4 and y= 2. Evaluate the expression.
4|y| -4x
xy|
4171-4x|
If x= - 4 and y= 2, then
|xy|
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-24 and 8

8 and -8

Step-by-step explanation:

Let x = -4 and y= 2. Evaluate the expression.

1) 4|y| -4x

Note that |y| acan be +y or -y

4|y| -4x

= 4y - 4x

= 4(-4)-4(2)

= -16 - 8

= -24

If |y| is -y we have

4(-y) -4x

= -4y-4x

= -4(-4)-4(2)

= 4|y| -4x16 - 8

= 8

For the expression

|xy|

= xy

= -4(2)

= -8

If |xy| ix negative

= -(xy)

= -(-4*2)

= -(-8)

= 8

Hence the value is 8 and -8

ok

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at home andrea has 1 2/3 kilograms of rice

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