if 2 and minus one by three are the zeros of polynomial 3 x cube minus 2 x square - 7 x minus 2 find the third zero of polynomial
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we need to use coefficient properties for solving this problem easily
3x^3-2x^2-7x-2
sum of roots=b=2/3
2,-1/3+a=2/3
a=2/3+1/3-2
a=1-2
a=-1
sanjeet83:
I can't understand
i will help u
there are few properties
i will send u an equation with which u can understand
please solve it by full descriptive process
x^3-x^ 2(α+β+γ)+x(α β+ β γ+ γ α)- α β γ=0
here three α, β, γ are the roots of the equation
if u have coefficient of x^3 u need to divide it on both sides
so thats the reason i have divided 3 in the above problem
if u understand pls mark as brainliest, if u dont ask me again
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