Answer:
Be more detailed, BC i can only give you a general answer a^2 + b^2 = c^2
Step-by-step explanation:
You start off by multiplying the second bracket by -1 to get rid of the bracket.
So,
(2x3 + x2 - 4x) - 9x3 + 3x2 =
2x3 +x2 - 4x - 9x3 + 3x2 =
(2x3 - 9x3) + (x2 + 3x2) - 4x =
-7x3 + 4x2 - 4x
It is 120 ways, surprisingly
Well let's say x = -1000
That's what I would do
