Work Step by Step
This is a difference between two squares, and hence $$49x^2-25=(7x-5)(7x+5).$$ One can check as follows $$(7x-5)(7x+5)=49x^2-35x+35x-25=49x^2-25 .$$
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.