pls answer this... steps needed
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x² - 5x + 6 = 0
=> x² - 2x - 3x + 6 = 0
=> x(x - 2) -3(x - 2)= 0
=> (x - 2)(x - 3) = 0
=> x = 2 or 3
So , alpha + beta - alpha×beta
= 2+3 - 2×3
=5 - 6
= -1
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