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Physics

Quadratic substitution in power equations

Replacing a squared quantity with a temporary variable turns some fourth-power equations into familiar quadratics.

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Chapter 3: Equations with powers, roots, and logarithms11 lessons · 38 min
  1. 1Fractional exponents and roots3 min
  2. 2Equations with fractional powers3 min
  3. 3Equations with negative powers3 min
  4. 4Equations with squared expressions3 min
  5. 5Radical equations and extraneous solutions3 min
  6. 6Reciprocal-sum equations3 min
  7. 7Difference of squares3 min
  8. 8Quadratic substitution in power equations4 min
  9. 9Logarithms and exponents3 min
  10. 10Solving exponential decay equations4 min
  11. 11Challenge: Equations with powers, roots, and logarithms6 min
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This lesson is part of the Physics course.

Example plan3 lessons · 10 min

Difference of squares3 min
Quadratic substitution in power equationsEquations with powers, roots, and logarithms4 min
Logarithms and exponentsEquations with powers, roots, and logarithms3 min

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