To solve the given problem, we need to multiply and simplify the expression \((7p)^2 \cdot (7p)^2\). We can use the properties of exponents to simplify the expression. Specifically, we will use the property that \((a^m \cdot a^n) = a^{m+n}\).
Step 1: Identify the Expression
We start with the expression:
\[
(7p)^2 \cdot (7p)^2
\]
Step 2: Apply the Properties of Exponents
Using the property of exponents \((a^m \cdot a^n) = a^{m+n}\), we can combine the exponents:
\[
(7p)^2 \cdot (7p)^2 = (7p)^{2+2}
\]
Step 3: Simplify the Exponent
Simplify the exponent by adding the exponents together:
\[
(7p)^{2+2} = (7p)^4
\]