The value of expression is 18.
A modulus function is a function that determines a number or variable's absolute value. A function with absolute values is another name for it. This function's result is always positive. let's suppose if you want to find modulus of -2 then you will get 2 as the answer.
now according to question
4|a|+8-a at a=-2
here a is negative that means modulus will give us positive value.
put a =-2 in the expression and get the answer. modulus of -2 will give us +2
so
=4(2)+8-(-2)
=8+8-(-2)
=8+8+2
=18
hence the answer is 18.
learn more about variables here:
https://brainly.com/question/1511425
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