Question

solve by factorisation (x-1) (x-2) + 2 = 0​

Answer 1

Answer:

$\sf x^{2} + x(a+b) + ab$

$\sf x^{2} + x(-1-2) + (-1*-2)$

$\sf \to x^{2} + x(-3) + (-1*-2)+2=0$

$\sf\to x^{2} -3x+2+2=0$

$\sf\to x^{2} -3x+4=0$

Step-by-step explanation: