To multiply the polynomial \(-5t^3(6t^7 - 9t)\) using the Distributive Property, we apply the distributive rule, which states that \(a(b + c) = ab + ac\).
Let's distribute \(-5t^3\) to each term inside the parentheses:
-
Multiply \(-5t^3\) by \(6t^7\): \[ -5t^3 \cdot 6t^7 = -30t^{3+7} = -30t^{10} \]
-
Multiply \(-5t^3\) by \(-9t\): \[ -5t^3 \cdot -9t = 45t^{3+1} = 45t^4 \]
Now combine these results: \[ -30t^{10} + 45t^4 \]
So the final answer, using the Distributive Property, is: \[ \boxed{-30t^{10} + 45t^4} \]