I recognise these from a step question, incredibly difficult to solve algebraically but if it is from that step question then you are told c and d are positive integers, you can see that c^3 must be less than 99, so you can narrow your possibilities down, trial and error from there until you get numbers that work for both equations.
I recognise these from a step question, incredibly difficult to solve algebraically but if it is from that step question then you are told c and d are positive integers, you can see that c^3 must be less than 99, so you can narrow your possibilities down, trial and error from there until you get numbers that work for both equations.
Yeah it is a step question. In the end i guessed and my answers for c and d were correct, just thought it would be more elegant if there was an algebraic method
I recognise these from a step question, incredibly difficult to solve algebraically but if it is from that step question then you are told c and d are positive integers, you can see that c^3 must be less than 99, so you can narrow your possibilities down, trial and error from there until you get numbers that work for both equations.