Question

split into middle term
4x²-x-4

Answer 1

HEYA MATE !

4x² - x -4

4x² -(4-4)x - 4

4x²-4x +4x -4

4x(x-1) +4(x-1)

(4x+4)(x-1)

either. or.

x= (-1). x=(1)

hope it helps

Answer 2

4x²-x-4

4x²-(4+4)x-4

4x²-4x+4x-4

4x(x-1)+4(x-1)

(4x+4)(x-1)

OR

X=-1 x=1