Question

Find a quadratic polynomial
palynomial whose zeroes
$\frac{2}{3} and \frac{ - 5}{7} .$
​

Answer 1

2/3+(-5/7)=14-15/21

=(-1/21)

2/3×(-5/7)=(-10/21)

now a quadratic polynomial whose roots are a,b is

x^2-(a+b)x+ab

x^2-(-1/21)x+(-10/21)=0

x^2+1/21x-10/21=0

hope u understand

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