1 purse and 1 watch is 27€
2 purse and 1 watch is 41€
So we can see the watch is constant means 1 watch is every time but purse is increase by 1 in the next expression
So 41-27 = 14€ is one purse
because the watch is every time one, so the next value increase is by purse
1purse and 1watch = 27
We know,
1 purse is 14€
So 27-14=13€ is one watch
We can check by
1 purse is 14 so two purse is 14*2=28
28+13=41
Which is same as they said in second expression
Hope it help you!¡
Please, post the instructions along with your question, and if possible share the question in symbolic form, not in words.
Do you mean Question #5? By (2) x cube, do you mean 2x^3?
I strongly suggest that you use lots of parentheses ( ) to show how your numbers are grouped, and not to use " x " to denote multiplication (use " * " for that, please.
If only you'll clear this up, I'd be happy to help.
I will assume that your post is 2x^3 - 3(9x-5)^2.
Then 2x^3 - 3(81x - 90x + 25). Does this have any resemblance to what you wanted me to see in your post?