SOLUTION: Solve f(x)=ax2+bx+c, where a=14,b=−25 and c=−7. There are two fixed points at x1 and x2, where x1>x2. How to get the value of x1 ? In two decimal places.

Question 1113872: Solve f(x)=ax2+bx+c, where a=14,b=−25 and c=−7. There are two fixed points at x1 and x2, where x1>x2. How to get the value of x1 ? In two decimal places.
Found 2 solutions by ikleyn, josgarithmetic:
Answer by ikleyn(52781)   (Show Source): You can put this solution on YOUR website!
.
Solving quadratic equations is a BASIC ELEMENTARY SKILL the student MUST DEVELOPE in his (or her) school years.

To help the students on this subject, the lessons were created in this site
    - Introduction into Quadratic Equations
    - PROOF of quadratic formula by completing the square
    - HOW TO complete the square - Learning by examples
    - HOW TO solve quadratic equation by completing the square - Learning by examples
    - Solving quadratic equations without quadratic formula
    - Who is who in quadratic equations
    - Using Vieta's theorem to solve qudratic equations and related problems
    - OVERVIEW of lessons on solving quadratic equations

Start from the first two lessons.

Also, you have this free of charge online textbook in ALGEBRA-I in this site
    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this textbook under the topic "Quadratic equations".

Save the link to this online textbook together with its description

Free of charge online textbook in ALGEBRA-I
https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson

to your archive and use it when it is needed.

Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
What fixed points are those? The roots?

Roots,
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SOLUTION: Solve f(x)=ax2+bx+c, where a=14,b=&#8722;25 and c=&#8722;7. There are two fixed points at x1 and x2, where x1>x2. How to get the value of x1 ? In two decimal places.

SOLUTION: Solve f(x)=ax2+bx+c, where a=14,b=−25 and c=−7. There are two fixed points at x1 and x2, where x1>x2. How to get the value of x1 ? In two decimal places.