(1) (3x + y)³ - (3x - y)³
(2) (2x - 5y)³ + (2x + 5y)³
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Answered by
0
Answer:
1 answer is
Step-by-step explanation:
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Answered by
0
Answer:
Step-by-step explanation:
Given equations are
,
.
Use the formulae:
In the first equation, we have
,
.
In this problem, we find the values of ,
and subtract them.
Finding the value of ,
Now finding the value of ,
Now subtracting the two values, we get
.
So the value after subtraction is .
In the second equation, we have
,
.
In this problem, we find the values of and add them.
Finding the value of ,
Now finding the value of ,
Now adding the two values, we get
So the value after addition is .
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