A helpful scientific calculator that runs in your web browser window.
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Holt Online Learning
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In this video, Salman Khan of Khan Academy explains functions. Part 1 of 4.
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Khan Academy
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In this video, Salman Khan of Khan Academy explains completing the square.
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Khan Academy
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This video includes sample exercises and step-by-step explanations of solving quadratics and graph shifts for the California Standards Test.
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Khan Academy
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The Continuous Compound Interest Formula and an example with its solution
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College Algebra Tutorial
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I use this site for getting an example of factoring by grouping, but it has other examples of factoring too including GCF, factoring trinomials and using the AC Method.
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GCF and Factoring Trinomials
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How to solve quadratic equations using the completing the square method.
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SOS Math
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Step-by-step solutions to odd-numbered problems from dozens of algebra textbooks.
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Hotmath
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i ned help with adding and subtracting radicalj equations
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Tutor.com
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rationalize the denominator. 21 over radical 45
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Tutor.com
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