exam Maths Puzzle Numerical Ability

Find all numbers for which each rational expression is undefined. If the rational expression is defined for all real numbers, so state.

{x^+ 3/x^-3x +2}
{5x/6x - 24}

Simplif

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exam Other Question

write the equation of the line passing through each of the given pairs of points. Write your results in slope intercept form where possible.
#20 is: (-1,3) and (4,-2)

#24 is: (2,-3) and (2,4)

Thanks! how do you simplify 36.2 trillion/98.5 billion then write it in scientific notation?