Question

(-2x2 -3x + 7) - (2x3 - 5x + 10)

Answer 1

\(\ \sf - (2x3 - 5x + 10) \implies -1(2x3 - 5x + 10) \)

Simplify -1(2x3 - 5x + 10), then combine like terms.

Answer 2

Wow that fail, \(\ \sf -1(2x^3 - 5x + 10) \)

Answer 3

thanks!
But is the -1 in front necessary?

Answer 4

Um, the negative sign is an understood -1, but it'd be the same if you distribute it negative sign if you want to think of it like that.

Answer 5

k thanks!