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quester [9]
3 years ago
8

The sides of a rectangle have length x+ 2 and width x -5. Which equation describes the area, A, of the rectangle in terms of x?​

Mathematics
1 answer:
Yakvenalex [24]3 years ago
4 0

Answer:

The area in factored form is A=(x+2)(x-5).

The area in standard form is A=x^2-3x-10.

Step-by-step explanation:

The area of a rectangle is length times width.

So the area here is (x+2)(x-5).

They are probably not looking for A=(x+2)(x-5) because it requires too little work.

They probably want A in standard form instead of factored form.

Let's use foil:

First x(x)=x^2

Outer: x(-5)=-5x

Inner: 2(x)=2x

Last: 2(-5)=-10

---------------------Adding together:  x^2-3x-10.

The area in factored form is A=(x+2)(x-5).

The area in standard form is A=x^2-3x-10.

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JulijaS [17]

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Step-by-step explanation:

The sum of x and y is 37. In other words, x plus y equals 37 and can be written as equation A:

x + y = 37

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x - y = 9

Now solve equation B for x to get the revised equation B:

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Then substitute x in equation A from the revised equation B and then solve for y:

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Sum: 23 + 14 = 37

Difference: 23 - 14 = 9

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