Question

construct quadratic polynomial whose zeroes are -3/7 and -2/3​

Answer 1

Answer:

21x² + 23x + 6

Step-by-step explanation:

x = -3/7

=> 7x = -3

=> 7x + 3 = 0

So, the first factor is (7x+3).

x = -2/3

=> 3x = -2

=> 3x + 2 = 0

So, the other factor is (3x+2).

(7x+3)(3x+2)

= (7x)(3x) + (7x)(2) + (3)(3x) + (3)(2)

= 21x² + 14x + 9x + 6

= 21x² + 23x + 6