The first expression is
[tex](3x^2-6x+11)-(10x^2-4x+6)[/tex]
First, we use the distributive property
[tex]3x^2-6x+11-10x^2+4x-6[/tex]
Then, we combine like terms
[tex]-7x^2-2x+5[/tex]
The first answer is A.
The second expression is
[tex]\begin{gathered} (-3x^2-5x-3)-(-10x^2-7x+2) \\ -3x^2-5x-3+10x^2+7x-2 \\ 7x^2+2x-5 \end{gathered}[/tex]
The second answer is C.
The third expression is
[tex]\begin{gathered} (12x^2+6x-5)-(5x^2+8x-12) \\ 12x^2+6x-5-5x^2-8x+12 \\ 7x^2-2x+7 \end{gathered}[/tex]
The third answer is B.
