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inessss [21]
2 years ago
15

Refer to the rectangle below. The length of the rectangle is x + 12. The width of the rectangle is x + 3.

Mathematics
1 answer:
Elis [28]2 years ago
4 0

Answer:

x^2+15x+36

Step-by-step explanation:

The complete question is shown in the attachment.

The length of the rectangle is x + 12. The width of the rectangle is x + 3.

Recall that area of a rectangle is Length \times Width

In terms of x, the area is (x+12)(x+3)

Recall the distributive property of real numbers: (a+b)(c+d)=a(c+d)+b(c+d)

We apply this property to get:

(x+12)(x+3)=x(x+3)+12(x+3)

We expand again to get:

(x+12)(x+3)=x^2+3x+12x+36

We now simplify to obtain:

(x+12)(x+3)=x^2+15x+36

The area of the rectangle is x^2+15x+36

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<span><u><em>The correct answer is: </em></u>
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<u><em>Explanation</em></u><span><u><em>: </em></u>
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