How do you factorise the qaudratic equation xsquared plus x plus x plus 1-5?

Answer 1

-4

Answer 2

Do you mean the quadratic expression of: x2+x+x+1-5

If so it then becomes: x2+2x-4

When factored: (x+1-sq rt 5)(x+1+sq rt 5)

Because:-

x*x = x2

(1-sq rt 5)x+(1+sq rt 5)x = 2x

(1-sq rt 5)*(1+sq rt 5) = -4

Knowledge of the quadratic formula helps.