Question

quadratic polynomial, whose zeroes are -4 and -5, is …. ​

Answer 1

Answer:

x square + 9x + 20

Step-by-step explanation:

sum of zeroes = -4 + ( -5 ) = -9

product of zeroes = -4 ×-5 = 20

quadratic polynomial = x square - ( sum of zeroes) + product of zeroes

= x square + 9x +20

Answer 2

Step-by-step explanation:

let the zero of the quadratic polynomial be ;

Then ,

So,

sum of 0 = -9

product of 0 = 20

then ,

the quadratic polynomial ;

=> x^2 - (sum of zeros) + product of zeros

=> x^2 -(-9)+20

=>x^2 +9+20

a quadratic polynomial whose zeroes are - 4 and -5 is x^2 +9+20 .