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C2 Maths Help

a) Find the first four terms in the expansion, in ascending power of x, of (1+3x)^8

b) Show that, if terms involving x^4 and higher powers may be ignore, (1+3x)^8+(1-3x)^8=2+504x^2

Thanks guys

Reply 1

16Characters....

Original post by haken102

a) Find the first four terms in the expansion, in ascending power of x, of (1+3x)^8

b) Show that, if terms involving x^4 and higher powers may be ignore, (1+3x)^8+(1-3x)^8=2+504x^2

Thanks guys

What have you tried?

Reply 2

TeeEm

Original post by haken102

a) Find the first four terms in the expansion, in ascending power of x, of (1+3x)^8

b) Show that, if terms involving x^4 and higher powers may be ignore, (1+3x)^8+(1-3x)^8=2+504x^2

Thanks guys

have you done anything so far?

EDIT
too late

(edited 8 years ago)

Reply 3

Zacken

Original post by haken102

a) Find the first four terms in the expansion, in ascending power of x, of (1+3x)^8

b) Show that, if terms involving x^4 and higher powers may be ignore, (1+3x)^8+(1-3x)^8=2+504x^2

Thanks guys

What are your thoughts?

Edit: wow. :lol: