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VLD [36.1K]
3 years ago
7

A rectangle is (x+10)ft by (x+4)ft. If a square of length xft on a side is cut from the rectangle, represent the remaining area

in the form of a polynomial function A(x)
Mathematics
1 answer:
Andrei [34K]3 years ago
7 0

Answer: A(x)=14x+40

Step-by-step explanation:

Given : The dimension of a rectangle is  (x+10)ft. by (x+4)ft.

Then, Area of rectangle will be :-

A_1(x)=(x+10)\times(x+4)=x^2+(10+4)x+40\\\\\Rightarrow\ A_1(x)=x^2+14x+40

If a square of length xft on a side is cut from the rectangle, then the area of the square :-

A_2(x)=x^2

Now, the remaining area in the form of a polynomial function A(x) will be :-

A(x)=A_1(x)-A_2(x)\\\\=x^2+14x+40-x^2=14x+40

Hence, the  remaining area in the form of a polynomial function A(x) will be :-

A(x)=14x+40

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