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inysia [295]
2 years ago
10

Please help with this due asap

Mathematics
2 answers:
yuradex [85]2 years ago
7 0
A.
6/9 + 6/9 = 12/9
Hope this helps!!!
adoni [48]2 years ago
7 0

Answer:

the first one

Step-by-step explanation:

so yeah mmmmmmmm

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How would the sum of cubes formula be used to factor x3y3 + 343? Explain the process. Do not write the factorization.
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Given : Expression -x^3y^3+343

To find : How would the sum of cubes formula be used to factor given expression? Explain the process. Do not write the factorization.

Solution :

The formula of sum of cubes is,

a^3+b^3=\left(a+b\right)\left(a^2-ab+b^2\right)

First we convert the given expression in a^3+b^3

x^3y^3+343

Apply exponent rule : a^mb^m=(ab)^m

x^3y^3=(xy)^3

Rewrite 343=7^3

Therefore, x^3y^3+343  could be written as =\left(xy\right)^3+7^3

On comparison with the formula,

a=xy , b=7

\left(xy\right)^3+7^3=(xy+7)(xy^2-xy(7)+7^2)

\left(xy\right)^3+7^3=(xy+7)((xy)^2-7xy+49)            

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Step-by-step explanation:

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