Evaluate the following expression for a = -5 and b = 7
a2 – 6b
A= -5
So A*2=-5*2
-10-b*6
b=7
So 7*6=42
-10-42=52
Answer 52
Mmmmm....let's look at this again
We have
(-5)*2 - 6*(7) =
-10 - 42 = -52
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
