find the sum of x²+3x+2and x²-3x+2
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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
Hope this helps you
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