Answer:
[tex]10r^2+3r-18[/tex] sq. units
Step-by-step explanation:
The area of a rectangle is its length multiplied by its width, so in this case:
[tex]A=(5r-6)(2r+3)[/tex]
We can solve this using the distributive property to expand the right side, and then combine like terms to simplify:
[tex](5r-6)(2r+3)=\\=2r(5r-6)+3(5r-6)\\=10r^2-12r+15r-18\\=10r^2+3r-18[/tex]
