Please help me with this math?

I need help on this math homework





it says


Evaluate each expression for a= 5,b= -4, and c= -6





1) l b +2 l





2) - l c l





3) l b - c l





4)l b l - l c l





5) l a l + l 4c l





6) - l a - b l





7) 3a - l b l





8) 5 l b + c l





please help me thank you so much!





and I had to use l's as absoule value signs

Please help me with this math?
plug them in. So,


For example, for number one,


1.)





l b +2 l


l-4+2l


I-2l


=2


and yea..
Reply:1) l(-4)+2 l =l -2 l = 2


2) - l -6 l = - l 6 l =-6





and so on.





Do the math inside the absolute value signs first, make that positive. If there is a negative outside the absolute value sign, you basically multiply by -1, so the answer is always a negative.
Reply:1) I-4+2I = I-2I = 2





2) -I-6I = -6





3) I-4-(-6)I = I-4+6I = I+2I = 2





4) I-4I-I-6I = 4-6 = -2





5) I5I+I4(-6)I = 5+I-24I = 29





6) -I5-(-4)I = -I5+4I = -9





7) 3(5)-I-4I = 15-4 = 11





8) 5I-4+(-6)I = 5I-10I = 50
Reply:since absolute value means make the number positive even if it's assigned negative at the begnning. and if it's already positive, then it doesn't change anything.





1. 6


2. -6, because of neg sign outside of abs value


3. 11


4. 10


5. 29


6. -11 same reason as num 2


7. 11


8. 10