Answer:
[tex]15x^{9} -40x^{6}[/tex]
[tex]5x^{6} (3x^{3} -8)[/tex]
Step-by-step explanation:
15x⁹ - 40x⁶
5x⁴ (3x⁵– 8x²)
apply the distributive law: a(b - c) = ab - ac
a = 5x⁴ , b = 3x⁵ , c = 8x²
= 5x⁴ * 3x⁵– 5x⁴ * 8x²
= 15x⁹ - 40x⁶
