Question

factorise 4+8x-x^2​

Answer 1

Answer:

4+8x-x²

4+ [4-2] x-x²

4+4x-2x-x²

4 [1+x] -2x [1+x]

(4-2x) (1+x)

Either,

4-2x= 0

4=2x

4/2=x

2=x

x=2

Or

1+x=0

x=-1

HOPE IT HELPS YOU DEAR FRIEND..