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25 June, 12:54

Express I'm the form p + q root of 7

(2+3root7) (5-2root7)

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  1. 25 June, 13:00
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    Step-by-step explanation:

    (2+3root7) (5-2root7)

    = (2+3root7) (5+-2o2rt7)

    = (2) (5) + (2) (-2o2rt7) + (3root7) (5) + (3root7) (-2o2rt7)

    =10-4o2rt7+15o2rt7-6o4r2t14

    =-6o4r2t14+11o2rt7+10
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