SOLUTION: question 3 error analysis: describe the error in the way the difference of the two polynomials is set up and/or solved, please be specific (6x^2 - 5x) - (2x^2 + 3x - 2) = 6

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Question 1127748: question 3
error analysis: describe the error in the way the difference of the two polynomials is set up and/or solved, please be specific
(6x^2 - 5x) - (2x^2 + 3x - 2)
= 6x^2 - 5x - 2x^2 + 3x - 2
= 4x^2 - 2x - 2
question 4
solve the question above correctly, please show your work

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

describe the error in the way the difference of the two polynomials is set up and/or solved, please be specific
%286x%5E2+-+5x%29+-+%282x%5E2+%2B+3x+-+2%29
= 6x%5E2+-+5x+-+2x%5E2+%2B+3x+-+2=> highlight%28error%29
= 4x%5E2+-+2x+-+2=> highlight%28error%29
question 4
the question above solved correctly:
%286x%5E2+-+5x%29+-+%282x%5E2+%2B+3x+-+2%29
=6x%5E2+-+5x+-+2x%5E2+-+3x+%2B+2->recall the rule: When parentheses are preceded by a minus sign − change the sign of every term within the parentheses.
=4x%5E2+-+8x++%2B+2