Question

If x square-3x+2 is positive then

Answer 1

Given x² −3x+2=0

x² −2x−1x+2=0 (Resolving the expression)

x(x−2)−1(x−2)=0 (Taking common factors)

(x−2)(x−1)=0 (Taking common factors)

∴x−2=0 or x−1=0 (Equating each factor to zero)

∴x=2 or x=1

∴2 and 1 are the roots of x² −3x+2=0

Answer 2

Answer:

x²-3×+2

ײ-2×-×+2

x(×-2)-1(×-2)

(×-1)(×-2)

1)×-1=0 2)×-2=0

x=1 x=2