Lucia finds that (3x²+3x+5)+ (7x²−9x+8) – 10x²−12x+13. What

Last updated: 7/20/2022

Lucia finds that (3x²+3x+5)+ (7x²−9x+8) – 10x²−12x+13. What error did Lucia make? She found the difference instead of the sum. She combined the terms 3x² and 7x² incorrectly. She combined the terms 3x and -9x incorrectly. She did not combine all like terms.