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Firdavs [7]
3 years ago
12

Factor -3x - 3y - 3z. 3(-x – y + z) 3(x - y - z) -3(x + y + z) -3(x - y - z)

Mathematics
2 answers:
abruzzese [7]3 years ago
8 0
3rd option is the correct answer 
Ulleksa [173]3 years ago
8 0
It is the 3rd option because -3 is common in all of the terms.
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Answer:

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Area is given by

A=lw\\\Rightarrow A=\dfrac{x^2-x-6}{x-5}\times\dfrac{x^2-6x+5}{x+2}\\\Rightarrow A=\dfrac{x^2-3x+2x-6}{x-5}\times\dfrac{x^2-5x-1x+5}{x+2}\\\Rightarrow A=\dfrac{(x-3)(x+2)}{x-5}\times\dfrac{(x-5)(x-1)}{x+2}\\\Rightarrow A=(x-3)(x-1)\\\Rightarrow A=x^2-4x+3

Area of the room is x^2-4x+3.

If x=10

Area of the room

A=x^2-4x+3=10^2-4\times 10+3\\\Rightarrow A=63\ \text{sq. units}

So, the amount of carpet needed would be 63\ \text{sq. units}.

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