Question

I need help with this question

Answer 1

The answer would be 81x^ + 108x^3y + 54x^2y^2 + 12xy^3 + y^4

Answer 2

81x^4

Explanation:

The given binomial is (3x + y)^4

First term =
`(4!)/(0!(4 -0)!) 3x^(4) .y^(0)`

4! = 24

0! = 1

(3x)^4 = 81x^4

y^0 =1

Applying these values, we get

= 24/24. 81x^4. 1

= 1.1.81x^4

The first term = 81x^4.

Hope this will helpful.

Thank you.