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Evaluate the following expression for a = -5 and b = 7

a2 – 6b

 Apr 14, 2014
 #1
avatar+2592 
0

A= -5 

So A*2=-5*2

-10-b*6

b=7

So 7*6=42

-10-42=52

Answer    52

 Apr 14, 2014
 #2
avatar+60 
0

Evaluate the following expression for a = -5 and b = 7

a2 – 6b

 

Mmmmm....let's look at this again

We have

(-5)*2 - 6*(7) =

-10 - 42  =  -52

 Apr 14, 2014
 #3
avatar+109520 
0

Evaluate the following expression for a = -5 and b = 7 a2 – 6b

I think that you may have meant 

a2 - 6b

= (-5)2 - 6*7

= 25 - 42

= -17

Incidentally, a2 can also be written as a^2   

 Apr 15, 2014

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