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An algebra problem by Ajala Singh

Algebra Level 1

What is

\[ 2014 \times 20132013 - 2013 \times 20142014? \]

0 1 2014 2013

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations,
examples, and problems from the community.

Used and loved by 4 million people

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including olympiad champions, researchers, and professionals.

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by Ajala Singh

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