Polynomials -class 10
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This is your answer ...Short cuts used every where But every step is fine..!
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Answer:
Step-by-step explanation:
f(x)= x square - 7x - 12
α+β= -(-7)
= 7
αβ = -12
So, 1/α+1/β-2αβ
(α+β)/αβ-2(-12)
(7/-12)+24
(-7+288)/12
281/12
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