Question

Find the coefficient of x^2 in (x^2 + x^2)^3.....
Correct answers will be thanked and irrelevant answers will be reported.....
Answer only if you are able to.......​

Answer 1

Answer:

Explanation:

To multiply these two terms you multiply each individual term in the left parenthesis by each individual term in the right parenthesis.

(

x

+

1

)

(

x

2

+

x

+

1

)

becomes:

(

x

×

x

2

)

+

(

x

×

x

)

+

(

x

×

1

)

+

(

1

×

x

2

)

+

(

1

×

x

)

+

(

1

×

1

)

x

3

+

x

2

+

x

+

x

2

+

x

+

1

We can now group and combine like terms:

x

3

+

1

x

2

+

1

x

+

1

x

2

+

1

x

+

1

x

3

+

1

x

2

+

1

x

2

+

1

x

+

1

x

+

1

x

3

+

(

1

+

1

)

x

2

+

(

1

+

1

)

x

+

1

x

3

+

2

x

2

+

2

x

+

1

Answer 2

Answer:

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