10 Points. Subtract The Polynomials. Please explain if you can.
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Answer:
[tex]-8ab-a+8[/tex]
Step-by-step explanation:
[tex](-9ab-a+9)-(-ab+1)[/tex]
First, we have to expand
[tex]-9ab-a+9+ab-1[/tex]
The above is equivalent to...
[tex]-9ab+ab-a+9-1[/tex]
[tex]-8ab-a+8[/tex]