Answer: [tex]3x^2-x+3[/tex]
Step-by-step explanation:
[tex](4x^2-x+6)-(x^2+3)[/tex]
Distribute the negative sign. This basically changes all the signs inside the parentheses.
[tex]4x^2-x+6-x^2-3[/tex]
Combine like terms;
[tex]3x^2-x+3[/tex]
