What is the sum of the coefficients of
( [3x - 3x^2 +1]^744 ) x ( [- 3x + 3x^2 +1]^745 )

 

I think there are 4, not sure. My math is rusty.

 

idk im only in 3rd grade, the teacher said she would give us 3 extra credit points if we completed it; she wrote on the the test saying almost! but i just don't get it :c

 

Isn't it just 744 x 745 which is 554,280?

 

thats what i put be she said it was wong

 

Answer : 1

 

I'm gonna say

 

my frend said he got that as answer and it rong too!

 

tl;dr : salt :

 

You simply substitute X for 1 (x=1) and solve.

 

but liek y?

 

It said coefficients, so you disregard the 'x' or simply substitute x for 1, works either ways.

 

And 1 to any power is 1 which when you multiply them it's 1 x 1 which is 1

 

You should remember that you may evaluate the sum of coefficients of a polynomial if you substitute 1 for the variable x such that:















Hence, evaluating the sum of coefficients and the given multiplication yields

Btw i copyed this from a website ;3

 

PhilsNZ <- official math teacher on this server

 

I'm on break. I don't want to be near math XD

 

Substitute x=1 into the expression. Then simplify.
[(3-3+1)^744] *[(-3+3+1)^745]
[(1)^744]*[(1)^745]
1*1
=1

 

Lol if you got any more, just tag me xD