3 years ago

How do you find x X*-6x-7=0

Mathematics

1 answer:

BaLLatris [955]3 years ago

8 0

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

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