Find a quadratic polynomial whose sum and product of zeros are 1/3 and -1/3.
Answers
Step-by-step explanation:
let zeroes be A and B
So the sum of zeroes is 1/3
A+B=1/3=-b/a
so b=-1 and a =3
A*B =-1/3=c/a
so c=-1
so the quadratic equation is
ax²+bx+c
by substituting a,b,c
3x²-x-1
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Quadratic polynomial whose sum and product of zeros are 1/3 and -1/3 is 3x² -x -1
Step-by-step explanation:
The zeros of a polynomial are the ones values of the variable for which the polynomial as an entire has 0 value. The sum and manufactured from zeros in a quadratic polynomial have an immediate relation with the coefficients of variables withinside the polynomial.
If α and β are the zeros of the quadratic polynomial f(x): ax2+bx+c, the sum of the roots of the polynomial is: α+β= −b/a. In different words, it refers to (-coefficient of x)/ (coefficient of x2).
If α and β are the zeros of the quadratic polynomial f(x): ax2+bx+c, the manufactured from the roots of the polynomial is: αβ= c/a.
In different words, it refers to (consistent term)/ (coefficient of x2).
The sum of zeroes are 1/2
X + Y = ⅓ = -B/A
Hence ,
B = -1
A = 3
The product of Zeroes are
X × Y= -⅓ = C/A
C = -1
So ,
Equation= ax²+bx+c
= 3x² -x -1
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