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https://vle.mathswatch.co.uk/images/questions/question15930.png

 

Pic added by Melody

 Mar 2, 2020
edited by Melody  Mar 3, 2020
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The are of this square is    (2+x)   *  (2+x)   =  7

                                            4  + 4x  + x ^2   = 7       Now subtract 4 from both sides.........and.......

 Mar 2, 2020

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