SOLUTION: Subtract 4x^2 – 5x from the sum of 9x^2 – 2 and 6x – 1. This is my answer is it right? –5x^2 – x + 1

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Subtract 4x^2 – 5x from the sum of 9x^2 – 2 and 6x – 1. This is my answer is it right? –5x^2 – x + 1       Log On


   

Question 78823: Subtract
4x^2 – 5x from the sum of 9x^2 – 2 and 6x – 1.
This is my answer is it right?
–5x^2 – x + 1


Answer by fetter6(6) About Me  (Show Source):
You can put this solution on YOUR website!
From the statement of the question, we should write:
{(9x^2-2)+(6x-1)}-(4x^2-5x) = 9x^2-2+6x-1-4x^2+5x = 5x^2+11x-3
The key to this was distributing the (-) sign through the binomial (4x^2-5x).