Claire94 Claire94

18-02-2015
Mathematics

Answered

How do you find x

X*-6x-7=0

Verified Answer :

konrad509 konrad509

18-02-2015

\(x^2-6x-7=0\\ x^2+x-7x-7=0\\ x(x+1)-7(x+1)=0\\ (x-7)(x+1)=0\\ x=7 \vee x=-1\)

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