Hello! My question is if I had a polynomial like this:

Question

(5x^2-3x) -(7x-12+3^2)
Would that 7x be negative? Because I have a problem similar to this and I wasn't sure whether to subtract "7x" or add it.

Thank you!

Answer 1

yes.
after removing the parentheses, that would be the same as adding
-7x+12-3x^2

Answer 2

yes ... the minus sign outside the parentheses changes all the signs inside the parentheses

Answer 3

Thank you!