Answer:
Area=[tex]x^2+2x-15[/tex]
Step-by-step explanation:
-Area of a rectangle is given as the product of it's length and width.
[tex]A=lw[/tex]
-Given the length is (x+5) and the width is (x-3), the area is calculated as follows:
[tex]A=lw\\\\=(x+5)(x-3)\\\\=x^2-3x+5x-15\\\\=x^2+2x-15[/tex]
Hence, the area of the rectangle as a standard polynomial is given as [tex]x^2+2x-15[/tex]
