Question

solve polynomials -x²-2x+3 for x=3

Answer 1

Well, let's first factor out this polynomial by taking out that negative in the front.
What would you get?

Answer 2

-3²-2(3)+3=6

Answer 3

You could do that.
Or you could do -(x^2+2x -3)
Factor to - (X-1)(x+3)
Then substitute. :3

Answer 4

But there you go :3

Answer 5

oh ok thank you

Answer 6

No prob. Just reference for doing these in the future :)