If α, β are the roots of ax2 − 2bx + c = 0 then α3β3 + α2β3 + α3β2 is
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given a x² - 2 b x + c = 0
and α, β are the roots
hence, α + β = 2 b / a and αβ = c/a
α³ β³ + α² β³ + α³ β² = α² β² ( α β + β + α )
= (c/a)² ( c/a + 2 b/ a )
= c² ( c + 2b) / a³
and α, β are the roots
hence, α + β = 2 b / a and αβ = c/a
α³ β³ + α² β³ + α³ β² = α² β² ( α β + β + α )
= (c/a)² ( c/a + 2 b/ a )
= c² ( c + 2b) / a³
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3
ax²-2bx+c=0 and α&β are roots
From the relation
α+β=-2b/a and αβ=c/a
Then substituting value
α³β³+α²β³+α³β²=α²β²(αβ+β+α)
=(c/a)²(c/a-2b/a)
=c²(c-2b)/a³
From the relation
α+β=-2b/a and αβ=c/a
Then substituting value
α³β³+α²β³+α³β²=α²β²(αβ+β+α)
=(c/a)²(c/a-2b/a)
=c²(c-2b)/a³
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