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MULTIPLE CHOICE Antonia is carpeting two of the rooms in her house. The dimensions are shown. What is the total area to be carpeted?

Fx2+3x

G2x2+6x−10

Hx2+3x−5

J8x+12

Short Answer

Expert verified

The total area to be carpeted is 2x2+6x−10.

Step by step solution

01

Step 1. Write formula of area of rectangle.

Area of rectangle is given by A=lengthl×breadthb.

02

Step 2. Find the area of first room.

Replacel withx+3 and b with x, in A=lengthl×breadthb.

A1=x+3x=x2+3x

03

Step 3. Find the area of second room.

Replacel withx+5 and b with x−2, in A=lengthl×breadthb.

A2=x+5x−2=xx−2+5x−2=x2−2x+5x−10=x2+3x−10

04

Step 4. Find the total area.

To find the total area, addA1 and A2.

A1+A2=x2+3x+x2+3x−10=2x2+6x−10

Therefore, the total area to be carpeted is 2x2+6x−10. As the obtained area completely matches with option G. Therefore, option G is the correct answer.

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