SOLVING Equation 2(x^2 - 4x)^2 - 5(x^2 - 4x) = 3

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In this video, I share with you steps for using concepts of substitution, complex trinomial factoring using decomposition method and quadratic formula to solve the equation. Solve the equation. 2(x^2 - 4x)^2 - 5(x^2 - 4x) = 3 @24x7MathTutor #equations #polynomial #equation #polynomials #solvingequations #polynomialfunction #polynomialfunctions #solving #advancedfunctions #grade12 #grade12maths #grade12exam #homeworkhelp #maths #mathmath #mathematics #math #khanacademyeducation #khanacademy #anilkumarmath #education
  1. Homework Help
  2. solving polynomial equation
  3. quadratic formula
  4. grade 12 math
  5. advanced functions
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xMathTutor
Автор

Let x^2-4×x=a. Then the equation becomes 2a^2-5×a-3=0.
Solving you get a=1/2ora=1. By substuting back you get x-3or-7/4.

pas