If alfa and beta are the zeros of the polynomial 2x²+5x+1 then find the value of alfa + beta + alfabeta
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Answered by
3
a=2,b=5,c=1
alpha + beta=sum of roots= -b/a= -5/2
alpha beta= product of roots = c/a= 1/2
Ans. 1/2-5/2
=-2
alpha + beta=sum of roots= -b/a= -5/2
alpha beta= product of roots = c/a= 1/2
Ans. 1/2-5/2
=-2
Plogan:
and u didn't answeed full ques its half
thats what I answered
okay now
put this zeroes in x²-sx+p. where s=sum of zero(alpha+beta), p=product of zero (alphaXbeta)
not ok bro and don't be rude
not rude
ok
I was asking is it enough or I should explain more
ok u should explain more
is it enough
Answered by
0
Answer:
-2
Explanation:
p(x) = 2x² + 5x + 1
Sum of roots = -5/2
Product of roots = 1/2
Therefore substituting these values,
α + β +αβ
=(α + β) + αβ
= -5/2 + 1/2
= -4/2
= -2
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