Answer:
Step-by-step explanation:
Given polynomial:
Convert this into standard form, order in descending powers:
The leading term, -2x⁹ is the one with the greatest power. Its coefficient, -2 is the leading coefficient.
[tex]\\ \rm\longmapsto 3x^6-2x^9+5x-12[/tex]
Write in standard form
[tex]\\ \rm\longmapsto -2x^9+3x^6+5x-12[/tex]
-2x has greatest degree hence leading coefficient is -2.