Answer:
The first option is correct.
Step-by-step explanation:
how do we multiply x - 9 by something? we put it in brackets
(x - 9) × (-3) = 51
that can be written like this
(x - 9)(-3) - 51
Answer:
4320
Step-by-step explanation:
The answer simplified is:
a= —2x^2+7x+22
