p(x)=3x^-12x+15 find the value of alpha^+beta^
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Answer:
3x²-12x+15
α+β= -(-12)/3 = 4
αβ= 15/3 = 5
(α+β)²= α²+β²+2αβ
4²-2(5) = α²+β²
16-10=α²+β²
6=α²+β²
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Answered by
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your answer is 6 and it's done by using formula of quadratic equation
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