Question

2. Expand (4x – 3y)^4 using Pascal’s Triangle

Answer 1

http://upload.wikimedia.org/wikipedia/commons/thumb/f/f6/Pascal's_triangle_5.svg/540px-Pascal's_triangle_5.svg.png

those are the coefficients that go in the expanded terms

so \(\bf (4x - 3y)^4\implies (4x)^4(3y)^0+\square(4x)^3(3y)^1+\square(4x)^2(3y)^2\\ \quad \\+\square(4x)^1(3y)^3+\square(4x)^0(3y)^4\)

Answer 2

apply the pascal's triangle:
\[(4x)^{4}+4(4x)^{3}(-3y)+6(4x)^{2}(-3y)^{2}+4(4x)(-3y)^{3}+(-3y)^{4}\]
and simplify

Answer 3

thank you guys so very much!!!!!!!!!!!!1

Answer 4

yw