SOLUTION: I need help with this problem (thanks--I don't have textbook--I am trying to help nephew in NY over telephone from NH): Simplify and express as a positive: {{{-x^2 - x +3}}}=-x+3

Algebra ->  Signed-numbers -> SOLUTION: I need help with this problem (thanks--I don't have textbook--I am trying to help nephew in NY over telephone from NH): Simplify and express as a positive: {{{-x^2 - x +3}}}=-x+3      Log On


   

Question 104349: I need help with this problem (thanks--I don't have textbook--I am trying to help nephew in NY over telephone from NH):
Simplify and express as a positive: -x%5E2+-+x+%2B3=-x+3
Found 2 solutions by Diva_01, jim_thompson5910:
Answer by Diva_01(1) About Me  (Show Source):
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
-x%5E2+-+x+%2B3=-x%2B3 Start with the given equation


-x%5E2+-+x+%2B3%2Bx=cross%28-x%2Bx%29%2B3 Add x to both sides



-x%5E2+-+x+%2B3%2Bx-3=cross%283-3%29 Subtract 3 from both sides



-x%5E2=0 Combine like terms


Now if you want to solve for x, then....



x%5E2=0 Multiply both sides by -1 to remove the negative on the left side


x=sqrt%280%29 Take the square root of both sides


So our answer is x=0