exam Maths Puzzle Numerical Ability

I need help with solving this, the equation for x

logx 1/64=-3

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exam Other Question

|x + 4| = 7

help please :) SOLVE FOR THE INEQUALITY AND WRITE THE SOLUTION IN INTERVAL NOTATION

PROBLEM: 2x^2+8x-10>0
PLEASE HELP I'M VERY CONFUSED WITH THIS PROBLEM? WE HAVE TWO ANSWERS (?)"U"(?) BU