Question

Write a quadratic polynomial some of whose zeroes is 2root 3

Answer 1

if you mean both zeroes are 2√3 then this is your answer
thus
α = 2√3 =β
then polynomial will be

P(x)  =  x² - (α+β)x +αβ
P(x)  =  x² - (2√3+2√3)x  + 2√3*2√3
P(x)  =  x² - 4√3x + 12

thus your polynomial will be
x² - 4√3x+12
whose zeroes are 2√3 and 2√3

Hope it helps you
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Answer 2

Hope it will help u.....