exam Maths Puzzle Numerical Ability

Hi,
I need help with this problem: {{{3x^3-4x=1}}}. I'm unsure how to factor it because of the cube. I moved the one to the other side and tried to factor it, but found i couldnt

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exam Other Question

Can you help me solve this equation?

A= h )B+b);B
_
2

Your help will be appreciated. Thank you!
-6(v+1)+v