Expand & Simplify: (3x-5)^2+(x-4)^2-10(x+4)(x-1)

[Stacyg]

Hi.
I have done this question multiple times and come up with a different answer each time.

Q. 1.) Expand and simplify
(3x-5)^2+(x-4)^2-10(x+4)(x-1)

So far I've gotten

= -72x +1
= 1 - 72x

And some others. Any help would be great.

 

[Integral]

Please show us your work, for example, what did you get for the expansion of each term?

 

[Stacyg]

okay. I end up with 10x^2 - 22x +41- 10x^2-10x-40x-40 taking everything out of the brackets.

 

[kamerling]

That -22x is probably the result of the x terms in (3x-5)^2+(x-4)^2 but you made a sign error.
there is also a sign error in -10x-40x and in -40