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17-05-2016
Mathematics

Answered

find the zeros of x3 +2X^2-23x-60

find the zeros of x3 +2X 2-23x-60 class=

Verified Answer :

17-05-2016

Hello,

P(x)=x^3+2x²-23x-60
P(-4)=(-4)^3+2(-4)²-23(-4)-60=0
P(-3)=(-3)^4+2(-3)²-23(-3)-60=0
P(5)=5^3+25²-235-60=0
Zeros are -4,-3,5

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