Question

Which expression is equivalent to 4x4y - 8x*y - 32x+y?

Answer 1

It is 4x²y(x - 4)(x + 2)

Explanation:

`{4x}^(4) y - {8x}^(3) y - {32x}^(2) y`

factorise out 4x²y :

`= 4 {x}^(2) y( {x}^(2) - 2x - 8)`

find the factors of x² - 2x - 8:

`= 4 {x}^(2) y \{(x - 4)(x + 2) \}`

Answer 2

Option D

Explanation:

Hope it will help you.