Question

factorise the expression x^3+x^2-4x-4
please tell me the steps​

Answer 1

Answer:

x^3 + x^2 -4x -4

All the zeroes of -4 are +1 , -1 , +2 , -2 , +4 , -4

p(x) = x^3+x^2-4x-4

p(-1) = (-1) ^3 + (-1) ^2 -4(-1) -4

= -1 + 1 +4 -4

= 0

Now by using long division method you can get the answer...

Remainder : x^2 - 4

( x +2 ) (x-2)