Answer:
[tex]x^2+23x+49[/tex]
Step-by-step explanation:
The formula for the area of a rectangle typically is lw, where l is length and w is width. The area of the big rectangle is [tex](x+10)(2x+5)=2x^2+25x+50[/tex] units. The area of the square cut out inside is [tex](x+1)(x+1)=x^2+2x+1[/tex] units. Subtracting the second expression from the first, you get [tex]x^2+23x+49[/tex]. Hope this helps!
