Question

Can you help me with these? I need help on how to solve these questions! URGENT!

Answer 1

12. B

13. E

14. D

15. H

16. A

17. F

Explanation:

12. (x-3)(x-9)

13. (x+3)(x+9)

14. (x+7)(x-11)

15. (2x+3)(x-3)

16. (2x-3)(x+3)

17. (3x-1)(x-3)

Answer 2

You can fill the choices into the equations for x and solve then to see if they are correct. For example, you could put -3 and 3/2 into x^2-12x+27=0
Which would make (-3)^2-12(3/2)+27=0.
From the picture I posted, you can see that 0=0, so the equation is correct