Expand using binomial expansion (1+6x)^3
(1+6x)^3 = 1+3(6x) +(3)(2)(36x^2)/2 + (3)(2)(1)(216x^3)/6
= 1+18x+108x^2 + 216x^3
OO
Related Maths A Level answers
All answers ▸Express (4x)/(x^2-9) - (2)/(x+3) as a single fraction in its simplest form.
A curve C has the equation y=5sin3x + 2cos3x, find the equation of the tangent to the curve at the point (0,2)
The first three terms of an arithmetic series are p, 5p – 8, and 3p + 8 respectively. (a) Show that p=4 (b) Find the value of the 50th term in the series.
If f(x)= ( ((x^2) +4)(x-3))/2x find f'(x)