Question

Check whether (x+1) is the factor of x3 – x 2 – (2 +√2) x + √2 ( pls help me I don't know this answer)​

Answer 1

Step-by-step explanation:

Put x=-1 in x3 – x 2 – (2 +√2) x + √2

-1^3 –(- 1 )^2 – (2 +√2) -1 + √2

-1-1+2-√2+√2

0

So (x+1) is a factor of x3 – x 2 – (2 +√2) x + √2 since the remainder is 0