The number of hearing aids that needs to be produced and sold is??

14.36 AND 9.89 ===> 14 or 10

Step-by-step explanation:

Y =  Ax2BxC

Enter coefficients here >>>  -497-568

Standard Form: y = -4x²+97x-568    

-24.25-12.125147.015625-588.062520.0625

Grouped  Form: No valid Grouping      

Graphing Form: y = -4(x-12.13)²+20.06    

Factored Form: PRIME    

Solution/X-Intercepts: 14.36 AND 9.89    

Discriminate =321 is positive, two real solutions    

VERTEX: (12.13,20.06)     Directrix: Y=20.13    

x = -4

This is the answer o the question.