Question

if x=2a+4b and y=2a-4b, find (4x+2y)-(2x-4y) in the terms of a and b​

Answer 1

Answer:

16b

Step-by-step explanation:

open the brackets..

4x+2y-2x-4y

4x-4y+2y-2x

4(x-y)+2(y-x)

4{(2a+4b)-(2a-4b)}+2(2a-4b-2a-4b)

4(8b)+2(-8b)

=16b

Answer 2

Answer:

[4x+2y] - [2x-4x]

value:-

x= 2a+4b

y = 2a-4b

Step-by-step explanation:

put the value

=[4×2a+4b + 2×2a-4b] - [2×2a+4b - 4×2a-4b]

=[24ab-16ab] - [16ab-24ab]

=24ab-16ab-16ab+24ab

=48ab-32ab

=16ab

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