Respuesta :
see the figure attached
we know that
the old blueprint is the square ABCD
Area=x*x=x²----------A1=x²
the new blueprint is the rectangle AEFB
Area=(x+15)*x----------> A2=x²+15*x
so
A2=A1+15*x
therefore
the answer is
the term 15x is the area added to the office according to the new blueprint
we know that
the old blueprint is the square ABCD
Area=x*x=x²----------A1=x²
the new blueprint is the rectangle AEFB
Area=(x+15)*x----------> A2=x²+15*x
so
A2=A1+15*x
therefore
the answer is
the term 15x is the area added to the office according to the new blueprint

Answer:
The area added to the office according to the new blueprint
Step-by-step explanation:
you're welcome