Final answer:
The simplified form of the expression is -8c³d³ + 10c²d⁴.
Step-by-step explanation:
To rewrite the expression without parentheses, we need to perform the multiplication between the two terms.
We apply the distributive property, which states that:
a(b + c) = ab + ac.
Applying this to our expression, we have:
= (4cº d² -5d³) (-2c²d)
= -8c³d³ + 10c²d⁴.
This is the simplified form of the expression without parentheses.