Question

1. Solve using formula method x² – 3x - 2 = 0​

Answer 1

Answer:

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:

5

Step-by-step explanation:

x2-3x-2=0. x2-3x=2+0. x2-x=3+2. x2-x=5