exam Maths Puzzle Numerical Ability

PLEASE I NEED HELP ON THIS PROBLEMS: (3X^2-6)^2=

X^4-16=

(X+7)(X+9)=

X^2+14X+33=

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exam Other Question

it takes 15 minutes to travel from earth to mars on interstellar air shuttle. the speed of the ship doubles every minute. if the shuttle is traveling at 1,012 miles per hour when i 4x-(x+14)=4x+3