Seudónimo Seudónimo

10-11-2016
Mathematics

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The square of a number minus the number = 20, Can You form a quadratic equation and factorise it?

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leeandrews2 leeandrews2

10-11-2016

yes you can ... here is an example x^2-x=20, x^2-X-20 factored is (x-5)(x+4)

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good job