please solve this question class 10th chapter polynomial
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-2
Step-by-step explanation:
alpha + beta = -b/a =2
alpha . beta = c/a = 3
where a, b are coefficient of x square and x and c is constant
(alpha+beta)^2 = alpha square + beta square + 2.alpha.beta
substitute alpha + beta in l.h.s and alpha.beta in r.h.s.
hence
(2)^2 = alpha square + beta square + 2(3)
-2 = alpha square + beta square
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