Question

how to factorise x^2-3x-4​

Answer 1

Answer:

.ans= x²-3x-4

  x²-4x-x-4

  x(x-4)+1(x-4)

   (x-4)(x+1)

and roots=x-4=0

                 x=4

x+1=0

x=-1

Step-by-step explanation: