SOLUTION: Use the quadratic formula to solve for x. 2x squared = -7x+5 Round answer to nearest 100th

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Question 1144689: Use the quadratic formula to solve for x.
2x squared = -7x+5
Round answer to nearest 100th
Found 2 solutions by greenestamps, ikleyn:
Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


(1) Put the equation in the required form to find a, b, and c: ax%5E2%2Bbx%2Bc+=+0
2x%5E2%2B7x-5+=+0
a = 2; b = 7; c = -5

(2) Plug a, b, and c into the formula and evaluate using a calculator.

(3) Round as directed.

Answer by ikleyn(52799) About Me  (Show Source):
You can put this solution on YOUR website!
.

If you don't know the quadratic formula and need more explanations about it,  look into the lessons
    - Introduction into Quadratic Equations
    - PROOF of quadratic formula by completing the square
in this site.

Other lessons on solving quadratic equations in this site are
    - 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
    - Using quadratic equations to solve word problems
    - Challenging word problems solved using quadratic equations
    - HOW TO solve the problem on quadratic equation mentally and avoid boring calculations
    - OVERVIEW of lessons on solving quadratic equations

A convenient place to observe all these lessons from the  "bird flight height"  is the last lesson in the list.

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.