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3 years ago

Solve by factoring.......................

Mathematics

2 answers:

aliina [53]3 years ago

6 0

$7x^2=21x\\
7x^2-21x=0\\
7x(x-3)=0\\
x=0 \vee x=3$

kap26 [50]3 years ago

5 0

$7x^2=21x \\
7x^2-21x=0 \\
7x(x-3)=0 \\
7x=0 \ \lor \ x-3=0 \\
x=0 \ \lor \ x=3 \\
\boxed{x=0 \hbox{ or } x=3}$

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