Answer: In the expression , [tex]x^2+15x[/tex]
The area of the photo = [tex]x^2[/tex] ( the second degree term, of the expression [tex]x^2+15x[/tex] )
The area of the frame around the picture = 15x ( the first degree term of the expression )
The length of the frame = x + 15 cm, ( the binomial, (x+15), a factor of expression [tex]x^2+15x[/tex] )
The length of the photo = x, ( the monomial, x, a factor of expression [tex]x^2+15x[/tex] )
Step-by-step explanation:
Here x represents the length of the photo,
While the length of the frame is 15 more than that of photo,
⇒ Length of the frame = (x+15) cm,
Since, the photo is of square shape,
⇒ Area of the photo = [tex]x^2[/tex] square cm
Also, the breadth of the frame = x cm,
And, frame is of rectangular shape,
⇒ Area of the frame = (x+15)×x = [tex]x^2+15x[/tex] square cm
Also, the length of the fram around the picture = 15 cm
And, the breadth of that area = x cm
⇒ The area of the frame around the picture = 15x square cm