Answer
Both expressions simplify to 1.
Work Step by Step
$4x^0-3y^0$
$4(1)-3(1)$
$4-3$
$1$
Here, the x and the y are being raised to the power of 0, then multiplied by 4 and 3 respectively. The result is 1.
$(4x-3y)^0$
$1$
Any quantity raised to the power of 0 simplifies to 1.
