Answer:
[tex]-28p^5-21p^4+7p^3[/tex]
Step-by-step explanation:
[tex]-7p^3(4p^2 + 3p - 1)[/tex]
To find the product apply oprder of operations PEMDAS and properties of exponents
[tex]a^m \cdot a^n= a^{m+n}[/tex]
[tex]\frac{a^m}{a^n} =a^{m-n}[/tex]
Multiply -7p^3 inside the parenthesis
[tex]-7p^3(4p^2 + 3p - 1)[/tex]
[tex]-28p^5-21p^4+7p^3[/tex]