1. enter a quadratic polynomial which has zeros at 11 and 3

2. enter a quadratic polynomial which has zeros at - 2 and 6

3. enter a quadratic polynomial which has a double root at - 6

An equation with zeroes at r1 and r2 factors to (x-r1) (x-r2)

double root at r1 just means (x-r1) ^2

1. f (x) = (x-11) (x-3)

2. f (x) = (x - (-2)) (x-6) or f (x) = (x+2) (x-6)

3. f (x) = (x - (-6)) ^2 or f (x) = (x+6) ^2

if yo wanted expanded form

1. f (x) = x²-14x+33

2. f (x) = x²-4x-12

3. f (x) = x²+12x+36

1) y = (x-11) (x-3)

2) y = (x+2) (x-6)

3) y = (x+6) ^2 = (x+6) (x+6)