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Delicious77 [7]
3 years ago
8

Which expression is the completely factored form of x6−64y3 ? (x2−4y)(x4−16y2) (x2−4y)3 (x2−4y)(x4+4x2y+16y2) (x2+4y)(x4−4x2y+16

y2)
Mathematics
2 answers:
Juli2301 [7.4K]3 years ago
8 0
<h2>Answer:</h2>

The expression which is obtained on factorising it completely is:

         x^6-64y^3=(x^2-4y)(x^4+16y^2+4x^2y)

<h2>Step-by-step explanation:</h2>

We are asked to factorize the expression which is given by:

               x^6-64y^3

This expression could also be written as:

x^6-64y^3=(x^2)^3-(4y)^3

Now, we know that:

a^3-b^3=(a-b)(a^2+b^2+ab)

Here we have:

a=x^2\\\\and\\\\b=4y

Hence,

x^6-64y^3=(x^2-4y)((x^2)^2+(4y)^2+x^2\times 4y)

i.e.

x^6-64y^3=(x^2-4y)(x^4+16y^2+4x^2y)

horrorfan [7]3 years ago
4 0
(x^2 - 4y)(x^4 + 4x^2 y + 16y^2)
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Step-by-step explanation:

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Therefore the area of the hexagon is going to be 6 times the area of one of those equilateral triangles.

We know the area of a triangle is the product of its base times its height, divided by 2: \frac{base*height}{2} = \frac{2x*height}{2}

We notice that the triangle's height is exactly what is called the "apothem" of the hexagon (depicted in green in our figure) which measures x\sqrt{3}, so replacing this value in the formula above for the area of one of the triangles:

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which is the last option given in the list.

5 0
3 years ago
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Answer:

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Step-by-step explanation:

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4 years ago
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Now
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And that's the answer
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