Question

(2x-4y)^4 extend plz

Answer 1

use binomial theorem

Answer 2

or do like this :
\[(2x-y)^2(2x-y)^2\]
\[(4x^2+y^2-4xy)(4x^2+y^2-4xy)\]

Answer 3

simplify this

Answer 4

Best to use binomial theorem

Answer 5

\[(2x-4y)^{2}(2x-4y)^{2}\]\[(2x(2x-4y)-4y(2x-4y))(2x(2x-4y)-4y(2x-4y))\]\[(4x ^{2}-8xy-8xy+16y ^{2})(4x ^{2}-8xy-8xy+16y ^{2})\]\[(4x ^{2}-16xy+16y ^{2})(4x ^{2}-16xy+16y ^{2})\]\[4x ^{2}(4x ^{2}-16xy+16y ^{2})-16xy(4x ^{2}-16xy+16y ^{2})+16y ^{2}(4x ^{2}-16xy+16y ^{2})\]\[16x ^{4}-64x ^{3}y+64x ^{2}y ^{2}-64x ^{3}y+256x ^{2}y ^{2}-256xy ^{3}+64x ^{2}y ^{2}-256xy ^{3}+256y ^{4}\]\[16x ^{4}+384x ^{2}y ^{2}-512xy ^{3}+256y ^{4}\]

Answer 6

16x^4 + 4(8x^3)(-4y) + 6(4x^2)(16y^2) + 4(2x)(-64y^3) + (256y^4)

Now just simplify this.
16x^4+384x^2y^2-512xy^3+256y^4

Answer 7

@Isra