2x^3(x - 3)(x + 3)
1
11
x = -7
11. cuz 5+6=11
x=4
This is not correct. If x=11, then 9+x=20. In order for 9+x=21 to be correct, x would have to be equal to 12.
2 x 5 is the prime factorization of 10.
x = -11
This is related to an x + (x+1) + (x+2) function, in which case x equals 10. 10+11+12 is equal to 33.
X=5, x+6, 5+6=11
No 2x10=20 and 2x11=22. They are not equal