X × x = x^2
x × -3 = -3x
3 × x = 3x
3 × -3 = -9
x^2 + 3x - 3x - 9
So I would agree with C because the -3x and the 3x cancel each other out. I hope this helps!
Number one is a square number two is quadrillateral
I believe it is d also hope that help
Answer:
x > 23 I think
Step-by-step explanation:
