Rob and john share money in a ratio of 9:4. How much of the £39000 does john get ?
1 answer:
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The product would expand to
This is a trinomial, and the only way to make it a binomial is to cancel out a coefficient using our variable .
So, we can cancel either the linear term or the constant term.
In the first case, we require
In the second case, we require
But must be a non-zero rational number, so this solution is not feasible.
Ans is 351/8.
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