Question

factorise 4x²+ 5 x + 1​

Answer 1

4x^2 + 4x+x +1
4x(x+1)+1(x+1)
(4x+1)(x+1)
x+1=0 4x+1=0
x=-1 x=-1/4

Answer 2

Step-by-step explanation:

4x2 + 5x +1

4x2 + x + 4x +1

Take common ,

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

(4x + 1),( 4x+4 )

4x +1 =0 or , | 4x + 4=0

4x = -1 | 4x = -4

x = -1/4 | x= -1

-1/4 ,-1

hope it may help you