Answer:
The resulting expression is [tex]\LARGE{\underline{\boldsymbol{{9x^2-2a+3}}}[/tex].
Step-by-step explanation:
[tex](11a^2-3a+4)-(2a^2-a+1)[/tex]
[tex]=11a^2-3a+4-2a^2+a-1[/tex]
[tex]=11a^2-2a^2-3a+a+4-1[/tex]
[tex]=\LARGE\text{\boxed{\boldsymbol{9a^2-2a+3}}}[/tex]
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