Binomial Expansion

Question

2nd term:  (4x-2)^3  

 

4th term: (5x+3)^6

Answer 1

The 2nd term of (4x^2 - 3)^3 = -3(4x^2)^2(3)

                                                   = -144x^4

 

The 4th  term of (5x + 3)^6 = 20(5x)^4(3^3)

                                               = 20 x 27 x 125x^3

                                               =67500x^3

Answer 2

Obtain the first fourth terms in the expansion of (2+3x) raise to power 10 (2-3x)raise to power 10