Respuesta :

wegnerkolmp2741o

Answer:

-2

Step-by-step explanation:

3x^6-2x^9+5x-12

Write from highest power of x to lowest power

-2x^9+3x^6+5x-12

The leading coefficient is the number in front of the highest power of x

-2
-2 because I used parentheses and it made it a whole lot easier some nice advice if you like in class try to put parentheses a little more most people in my class don’t use it but it make hard stuff way easier have a nice day