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bulgar [2K]
3 years ago
7

Factor by using the difference of two cubes

Mathematics
1 answer:
Nikolay [14]3 years ago
6 0

Answer:

Step-by-step explanation:

a) a^3-64b^3

=(a)^3-(4b)^3

=(a-4b)(a^2+4ab+16b^2)

b) 3x^3-81y^3z^6

=3(x^3-27y^3z^6)

=3{(x)^3-(3yz^2)^3}

=3(x-3yz^2)(x^2+3xyz^2+9y^2z^4)

c)16a^3b^3-54c^3d^3

=2(8a^3b^3-27c^3d^3)

=2{(2ab)^3-(3cd)^3

=2(2ab-3cd)(4a^2b^2+6abcd+9c^2d^2)

hope u got!!

You might be interested in
The function h=-16t^2 +1700 gives you the height h, of an object in feet, at t seconds. How long will it take the object to hit
garik1379 [7]

Answer:

The object will hit the ground after 10.308 seconds.

Step-by-step explanation:

h(t) = -16t² + 1700

If you graphed this function, the object would be shown hitting the ground when it crosses the x-axis, in other words, when h = 0. So, to find the answer, just set h(t) equal to 0 and solve.

-16t² + 1700 = 0   Plug this into a calculator if you have one.

t = -10.308 and t = 10.308

Since time can't be negative, your answer will be the positive value, 10.308.


6 0
3 years ago
I need help! I have test tomorrow and I got sick so I couldn’t go to school and I’m lost
Elan Coil [88]
Well 6x8 = 48 so 8 touchdowns is 48 points
7 0
2 years ago
Which represents the value of Point C on the number line?
postnew [5]

Answer:

no

Step-by-step explanation:

clue what this means LOLOLOL

3 0
3 years ago
Read 2 more answers
Someone please help.
umka21 [38]

Let's go:


\frac{y}{3} = \frac{27}{y} \\\\ y^2 = 27.3 \\\ y^2 = 81 \\\ y = \sqrt{81} \\\ y = 9


I hope I helped you.


8 0
3 years ago
Helpppp meee pleaseee
miss Akunina [59]
B= the square root of 65

Formula: a^2= c*2-b^2

a^2= 81-16= 65

Once you find the square root of 65, thats your answer, but here they want you to keep it as 65.

Hope this helps!
5 0
2 years ago
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