how do I factorise this?

4x (squared) - 9x





also how do u use a number squared in a computer?

Kate, please see the below link.

Ask Me Help Desk - Announcements in Forum : Homework Help (https://www.askmehelpdesk.com/math-sciences/announcement-font-color-ff0000-u-b-read-first-expectations-homework-help-board-b-u-font.html)

Thank you.

Answer to 2nd question:
4x^2-9x is just one way; really in computerease it's

4*X^2-9*X

There are fancier ways of doing it here, but I haven't learned yet. The equation editior with Microsoft Word works.

how do I factor this?
4x (squared) - 9x


4x^2-9x

x(4x-9)