Algebra

Ben Brawn on Reversed subtraction 5 days, 8 hours ago

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Paul Decuypere on Solving a quadratic by using the quadratic formula 4 months ago

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Ben Brawn on Reversed subtraction 1 year ago

Thanks Joshua. I have just removed the extra options so there is only, equivalent and not equivalent.

Joshua Capel on Reversed subtraction 1 year ago

When the fractions are not equivalent in part (b) they are of the form z=(a-b)/(c-d) and z=(b-a)/(d+c) respectively. 

In this case the answer requires the selection of the option "not equivalent! One is the negative of the other.", but this is not true.

I think the option "not equivalent! One is the negative of the other." should be incorrect in both cases (but this will change the number of correct options between the two types of question).

Ben Brawn on Reversed subtraction 1 year, 10 months ago

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Ben Brawn on Inequalities that involve a single absolute value 1 year, 10 months ago

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Ben Brawn on Inequalities involving a rational function/hyperbola 2 years ago

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Ben Brawn on Quadratic Inequalities 2 2 years ago

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Ben Brawn on Quadratic Inequalities 2 years ago

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Ben Brawn on Solve equations which include a single root (e.g. \sqrt{x}=blah) 2 years, 1 month ago

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