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Answer:
_6 is the correct answer
Verified answer
Answer:
Answer = - 5/12
Step-by-step explanation:
Equation = 2x² + 5x - 12
Factorizarion :-
=> 2x² + 8x - 3x - 12
=> 2x(x+4) - 3(x+4)
=> (2x-3)(x+4)
=> x = 3/2 and - 4
=> alpha = 3/2 and beta = 4
Required answer = 1/alpha + 1/beta
=> (alpha + beta) / alpha x beta
=> (-5/2) / 6
=> - 5 / 12