Question

subtract the first term from the second term. 4x^y,6x^y

Answer 1

$6 {x}^{y} - 4 {x}^{y} = (6 - 4) {x}^{y} = 2 {x}^{y}$

Answer 2

first term =
$4 {x}^{y}$

second term =
$6 {x}^{y}$
Now

$6{x}^{y} - 4 {x}^{y} \\ \\ = {x}^{y} (6 - 4) \\ \\ = 2 {x}^{y}$