Work Step by Step
$x^4-y^2$ $\longrightarrow$ substitute given values $23^4-72^2$ $\longrightarrow$ resolve exponents $279841-5184$ $\longrightarrow$ subtract $274657$
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.