x^3y^3 + 343
The way the sum of cubes works is by taking the roots of each term and applying the formula.
The sum of cubes is as follows:
a^3 + b^3 = (a + b)(a^2 - ab + b^2)
In this case, we would display it like this:
x^3y^3 + 343 = (xy + 7)(x^2y^2 - 7xy + 49)
Answer:
Its D
Step-by-step explanation:
Answer:
of the cake
Step-by-step explanation:
add 
and 
to see the total amount of cake eaten.
a. find the common denominator: 8 x 3 = 24 and 6 x 4 = 24
b. multiply accordingly to get the correct numerator: 
+ 
c. add: + = 
subtract found value from total to find left over cake.
a. 24 - 7 = 14
simplify.
a. 
=
You are left with of the cake.
The Empire State Building, the Sears Tower, the Canadian National Tower - each of these structures was the tallest in the world at the time they were (Option D) built.
<h3>What is sentence correction?</h3>
Sentence correction or sentence improvement is a type of grammatical practice where a sentence is given with a word or a phrase that requires grammatical changes or improvement.
Now,
- Here, we are talking about each of the mentioned structures.
- By grammar, everything used for them must be singular.
- But as mentioned in the sentence in part D, the plurals "they were" are used, which is the faulty part of the sentence.
Hence, Option D is the correct part that needs correction; the correction would be: "it was built."
To learn more about sentence correction, refer to the link: brainly.com/question/14632568
#SPJ4
