Answer:
Product Property
Step-by-step explanation:
Given the expression;
![\log _47+\log _42=\log _414](https://img.qammunity.org/2023/formulas/mathematics/college/cex21p7zy11ejbouqq6pb40wb0puifh561.png)
Recall that the product property of logarithm can be written as;
![\log _b(x\cdot y)=\log _bx+\log _by](https://img.qammunity.org/2023/formulas/mathematics/college/7z8ivyyfl0cxeanmbhqnaa38lf6bnuoip6.png)
The given expression is similar to the product property, so the property used to rewrite the expression is the Product Property