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Drupady [299]
3 years ago
8

Please Factor the following polynomial - first by greatest common factor followed by factoring the trinomial. Please describe yo

ur steps. A correct answer without steps will only partial credit.
2x^2 - 6x - 36
Mathematics
1 answer:
Damm [24]3 years ago
8 0
<span>2x^2 - 6x - 36= 2*(x^2 - 3x -18)

Lets solve this now: </span>x^2 - 3x -18=0
x_{12} =(-b+- \sqrt{b^2 -4ac} )/2a= 3+- \sqrt{9+72} /2=(3+-9)/2=6
or -3
x^2 - 3x -18=0
(x+3)(x-6)=0

So the solution is
2(x+3)(x-6)
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The question says “The image shows the front of Bob’s barn.Bob plans on painting the front of his barn,not including the doors o
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Solution:

Length of the door = 7 ft

Breadth of the door = 5 ft

Area of the door = length × breadth

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                            = 35

Area of the door = 35 ft²

The given image is a trapezoid.

Top base = 12 ft

Bottom base = 20 ft

Area of the trapezoid = \frac{1}{2} \times\text{sum of the parallel sides}\times\text{height}

                                    $=\frac{1}{2}\times(12+20)}\times15

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Area of the trapezoid =  240 ft²

Surface area to paint = Area of the trapezoid – Area of the door

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Hence Bob need to paint 205 square feet.

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3 years ago
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Answer:

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Answer:

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