exam Maths Puzzle Numerical Ability

hellllppppp!!!!!!!!!! we werent taught anything

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exam Other Question

how should i solve this?
-3(6k +k)1/3
reduce fraction to simplest form

#1 16(t^2-2ttsubscript0+t^2subscript0)(t-tsubscript0-3)/3t-3tsubscript0

#2 x^4+4x^2+4 factor by grouping
#3 x^4-4x^2+4 factor by grouping