Answer:
1125
Explanation:
To evaluate the expression, we need to substitute x by 5 and y by 4, so we get:
[tex]\begin{gathered} 3xy^0\cdot3x^2 \\ 3(5)(4)^0\cdot3(5)^2 \end{gathered}[/tex]By properties of the exponents, any number to the power of 0 is equal to 1, and any number to the power of 2 is equal to that number multiplied by itself, so:
[tex]3(5)(1)\cdot3(5)(5)[/tex]Now, we can multiply the terms of the expression to get:
[tex]\begin{gathered} 15(1)\cdot15(5) \\ 15\cdot75 \\ 1125 \end{gathered}[/tex]Therefore, the answer is 1125
