exam Maths Puzzle Numerical Ability

Is (x-2) a factor of 3x^4+6x^3-30x^2+16x-8? Why or Why not?

Read Solution (Total 0)

exam Other Question

2x+1 - 3x+4 = 5x-9
---- ---- ----
3 6 9

The instructions only said solve.
Please help me with this:

log base 7 [log base 2(log base 3(x-1) - log base 3 (x+2))]=0