Question:

Marcus finds that (3x² – 2y² +5x)+(4x² +12y²-7x) - 7x² -

Last updated: 7/20/2022

Marcus finds that (3x² – 2y² +5x)+(4x² +12y²-7x) - 7x² -

Marcus finds that (3x² – 2y² +5x)+(4x² +12y²-7x) - 7x² - 10y²– 2x What error did Marcus make? He combined the terms 5x and -7x incorrectly. He combined the terms 3x² and 4x² incorrectly. He combined the terms -2y2 and 12y2 incorrectly. He subtracted the polynomials instead of adding.