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Quadratic Equations
Quadratic equations describe the motion of a baseball after it connects with a bat, and the acceleration of gravity at the Earth's orbit.
Excel in math and science
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It's hard to learn from lectures and videos
Learn more effectively through short, conceptual quizzes.
Our wiki is made for math and science
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Concept Quizzes
If \((x + 4)(3x - 1) = ax^2 + bx + c,\) what is the value of \(a + b + c?\)
Excel in math and science
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by Brilliant Staff
The area of a rectangle can be expressed as \((2x^2 + 11x - 21).\) If the width of the rectangle is \((x + 7),\) which expression could represent the length?
Excel in math and science
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It's hard to learn from lectures and videos
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If \(bx^2 + 32x = 4x(x - a),\) what is the value of \(ab\, ?\)
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
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The Smith family has \(2,581 \text{ft}^2\) available in their rectangular backyard to put in a swimming pool. They plan to use the entire space. If the pool will have dimensions of \(20 \text{ft}\) by \(80 \text{ft}\), and they want a patio of equal width around the pool, what will be the width of the patio, in feet?
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.
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by Brilliant Staff
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
Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.
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That seems reasonable.
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by Brilliant Staff