Question

Suppose that x* means 5x2 - x, then what does (y+3)* mean?

Answer 1

That should be squared..

Answer 2

No, those are the only instructions. But 5x is squared. Do I maybe plug in (y+3)?

Answer 3

It was a guess ha

Answer 4

Maybe 5(y+3)^2-(y+3)
5(y+3)
(y+3)* = 5y+15?

Answer 5

So you only take a y out of the second term? Not the first squared y?

Answer 6

Yes so you get 5(y+3)(y+3)-(y+3)
So the (y+3) crosses out leaving just 5(y+3)?

Answer 7

I hope so.

Answer 8

(y+3)* = 5y^2+30y+45 - (y + 3)

(y+3)* = 5y^2+30y+45 -1 (y + 3)

(y+3)* = 5y^2+30y+45 -y -3

(y+3)* = 5y^2 +29y - 42