Question

Error Analysis: Describe the error in the way the difference of the two polynomials is set up and/or

solved. Please be specific. (DO NOT tell me what the correct answer should be. Tell me what the mistake is.)
(6x2 - 5x) - (2x2 + 3x - 2)
= 6x2 - 5x – 2x2 + 3x - 2
= 4x² - 2x-2​

Answer 1

The distributive property is not properly applied to the second polynomial.

Explanation:

For whatever reason, it is a common mistake to say that ...

-(a +b +c) = -a +b +c . . . . WRONG!

Rather, it should be ...

-(a +b +c) = -a -b -c . . . . CORRECT