For question 19 and 20 can you please solve! Ill award 50 points to however does it! Thank you soo much!

19. x=-4,3

20. x=-3,-5

Step-by-step explanation:

19.

2x^2+x-6=0

x^2+x-12=0

(x+4)(x-3)=0

x=-4,3

20.

x^2+8x+15=0

(x+3)(x+5)=0

x=-3,-5

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.