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Evaluate the expression for the given value of the variable.       

| b| + b³ ; b = –2

 Nov 21, 2018
 #1
avatar+107348 
+2

l b l   + b^3         b = -2

 

l - 2 l   +  (-2)^3    =

 

2  +   ( - 8)    =

 

-6

 

 

cool cool cool

 Nov 21, 2018
 #2
avatar
+1

Since b=-2, you just have to use -2 instead of b in that expression.

Therefore |-2|+(-2^3)=2+(-8)=2-8=6

 Nov 21, 2018
 #3
avatar+128 
+1

-6

abs.value(-2) = 2

cubed.value(-2) = -8

2+(-8) = 2-8 = -6

 Nov 21, 2018
 #4
avatar+1035 
-1

Substitute.

\(|-2|+(-2)^3=|-2|+(-8)=2+(-8)=-6\)

 

You are very welcome!

:P

 Nov 21, 2018

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