By comparing all the options with the formula of sum of cubes and difference of cubes we get that
is sum of cubes
<h3>
What is formula of sum of cubes and difference of cubes?</h3>
Formula of sum of cubes and difference of cubes are following
![(a+b)(a^2 -ab +b^2) = a^3+ b^3 \\\\\\(a - b)(a^2+ ab+ b^2) = a^3 - b^3](https://tex.z-dn.net/?f=%28a%2Bb%29%28a%5E2%20-ab%20%2Bb%5E2%29%20%3D%20a%5E3%2B%20b%5E3%20%5C%5C%5C%5C%5C%5C%28a%20-%20b%29%28a%5E2%2B%20ab%2B%20b%5E2%29%20%3D%20a%5E3%20-%20b%5E3)
(a)
![(x-4) \left(x^{2}+4 x-16\right)\\=(x-4) \left(x^{2}+4 x-4^2\right)\\\\](https://tex.z-dn.net/?f=%28x-4%29%20%5Cleft%28x%5E%7B2%7D%2B4%20x-16%5Cright%29%5C%5C%3D%28x-4%29%20%5Cleft%28x%5E%7B2%7D%2B4%20x-4%5E2%5Cright%29%5C%5C%5C%5C)
by comparison with formula we can say that this is neither sum or nor difference of cubes.
(b)
![(x-1)\left(x^{2}-x+1\right)\\=(x-1)\left(x^{2}-x+1^2\right)](https://tex.z-dn.net/?f=%28x-1%29%5Cleft%28x%5E%7B2%7D-x%2B1%5Cright%29%5C%5C%3D%28x-1%29%5Cleft%28x%5E%7B2%7D-x%2B1%5E2%5Cright%29)
by comparison with formula we can say that this is neither sum nor difference of cubes.
(c)
![(x+1)(x-1)=x^{2}-1^{2}\\](https://tex.z-dn.net/?f=%28x%2B1%29%28x-1%29%3Dx%5E%7B2%7D-1%5E%7B2%7D%5C%5C)
we can say that this is neither sum nor difference of cube as it's difference of squares.
(d)
![(x+4)\left(x^{2}-4 x+16\right)\\\\(x+4)\left(x^{2}-4 x+4^2\right)](https://tex.z-dn.net/?f=%28x%2B4%29%5Cleft%28x%5E%7B2%7D-4%20x%2B16%5Cright%29%5C%5C%5C%5C%28x%2B4%29%5Cleft%28x%5E%7B2%7D-4%20x%2B4%5E2%5Cright%29)
by comparison with formula this is equal to
![x^{3}+4^{3}\\](https://tex.z-dn.net/?f=x%5E%7B3%7D%2B4%5E%7B3%7D%5C%5C)
Hence this is sum of cubes
(e)
![(x+4)\left(x^{2}+4 x+16\right)\\(x+4)\left(x^{2}+4 x+4^2\right)](https://tex.z-dn.net/?f=%28x%2B4%29%5Cleft%28x%5E%7B2%7D%2B4%20x%2B16%5Cright%29%5C%5C%28x%2B4%29%5Cleft%28x%5E%7B2%7D%2B4%20x%2B4%5E2%5Cright%29)
by comparison with formula we can say that this is neither sum nor difference of cubes.
By comparing all the options with the formula of sum of cubes and difference of cubes we get that
is sum of cubes
To know more about cubes visit: brainly.com/question/107100
Answer:
to find the perimeter of a rectangle , just add up all the values of the sides.
hope it helps :)
Answer:
120*3.5=420+180=600
Which means it took her about 4 and half days.
Step-by-step explanation:
Answer:
1
Step-by-step explanation:
as b have no number given it means. its coefficent is 1
160 = 100%
56 = x%
then you would cross multiply
160x = 56(100)
160x = 5600
x =
![\frac{5600}{160}](https://tex.z-dn.net/?f=%20%5Cfrac%7B5600%7D%7B160%7D%20)
x = 35
so
35% of 160 is 56.