Question

What is the value of a3 - b2 for a = 3 and b = 1/2 ?

Answer 1

substitute it

Answer 2

a^3 - b^2 = a*a*a - b*b

plug in the values for a and b, what do you get?

Answer 3

9-1? so the answer would be 8. Right?

Answer 4

1/2 * 1/2 = 1? are you sure?

Answer 5

also, it's a*a*a, so 3*3*3, not 3*3

Answer 6

is there no exponent? or just a whole num?

Answer 7

The answer is 26 3/4

Answer 8

a3 - b2
if it just a whole number then the constant num should be first
like 3a-2b
hahah
!! i'm just confused

Answer 9

right! good job, @Mackenzie2013

Answer 10

but in the future, to avoid confusion, you should write a^3, not a3

Answer 11

hahha!! its exponent

Answer 12

@pakkibu you misunderstood the problem. it is the equivalent of a*a*a - b*b, NOT 3a-2b

Answer 13

27-1/4
108-1/4
107/4 is answer