Current location - Training Enrollment Network - Mathematics courses - A math problem in the first volume of the ninth grade of Beijing Normal University (main flow)
A math problem in the first volume of the ninth grade of Beijing Normal University (main flow)
The answer is C.

Let the undetermined coefficient .. (a2+b2) be x ... and then we can get such a formula: X2-X-6=0.

Use cross multiplication in factorization to get .. (X-3)(X+2)=0. ......

Finally, the solution is X 1 = 3...X2 =-2.

Related articles
  • Three articles on the arrangement of mathematics winter vacation homework in the third grade of primary school
  • Top-level mathematical formula
  • Third grade friendship composition
  • The second volume of the first day of junior high school mathematics examination questions
  • The rational number of the first math problem! Urgent ¡ï¡ï¡ï¡ï¡ï¡ï¡ï¡ï¡ï
  • Ancient multiplication calculation method
  • Ten unsolved problems in mathematics
  • What should I do if I don't do well in the first math test in senior one?
  • What kind of crisis has the barber paradox caused?
  • The fourth grade mathematics knowledge unit 3 manuscript newspaper mathematics knowledge manuscript newspaper

    • copyright 2024 Training Enrollment Network All rights reserved