Question

Is this correct?
(x^5 - x^4 + 3x^3 + x^2) - (9x^5 - 4x^4 + 3x^3 - 5x)
x^5 - x^4 + 3x^3 + x^2 - 9x^5 + 4x^4 - 3x^3 + 5x
x^5 - 9x^5 - x^4 + 4x^4 + 3x^3 - 3x^3 + x^2 + 5x
-8x^5 + 3x^4 + x^2 + 5x

Answer 1

@mathmate

Answer 2

I suppose you mean:
(x^5 - x^4 + 3x^3 + x^2) - (9x^5 - 4x^4 + 3x^3 - 5x)
=x^5 - x^4 + 3x^3 + x^2 - 9x^5 + 4x^4 - 3x^3 + 5x
=x^5 - 9x^5 - x^4 + 4x^4 + 3x^3 - 3x^3 + x^2 + 5x
=-8x^5 + 3x^4 + x^2 + 5x
Yes, this is correct! Well done!

Answer 3

Thanks:)

Answer 4

You're welcome! :)