MYTUTOR SUBJECT ANSWERS

692 views

How do I solve a quadratic equation by completing the square?

The first step is to make sure that the coefficient of x^2 is 1 by dividing all terms by a (where a equals the coefficient of x^2). Then we must write the quadratic equation as a square plus another term. To do this, half the x coefficient to get b, and write out (x + b)^2 minus b^2. Move all constants (terms that do not involve x) to the other side of the equals sign and then square root both sides. Finally, isolate x to solve the equation.

Gina J. A Level French tutor, A Level Economics tutor, GCSE French tu...

2 years ago

Answered by Gina, a GCSE Maths tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

537 SUBJECT SPECIALISTS

£18 /hr

Javed R.

Degree: Biomedical Engineering (Bachelors) - Liverpool University

Subjects offered:Maths, Chemistry

Maths
Chemistry

“Postgraduate Biomedical Engineering student at the University of Strathclyde. Past classroom experience.”

£22 /hr

Sam F.

Degree: Economics with Placement (Bachelors) - Bath University

Subjects offered:Maths, Physics+ 2 more

Maths
Physics
Extended Project Qualification
Economics

“Studying for BSc Hons Economics, A level economics, maths and physics. Able to tutor GCSE/AS/A2 Economics, Maths and GCSE physics! ”

£18 /hr

Gayathri S.

Degree: Medicine (Bachelors) - Birmingham University

Subjects offered:Maths, Biology+ 3 more

Maths
Biology
.UKCAT.
-Personal Statements-
-Medical School Preparation-

“I’m a medical student keen to pass on my passion for learning to others! I’m immediately available to tutor at flexible times.”

About the author

£30 /hr

Gina J.

Degree: Economics with French (Bachelors) - Bristol University

Subjects offered:Maths, Spanish+ 2 more

Maths
Spanish
French
Economics

“Private tutor of Economics, Maths and French with six years of experience. I am passionate about teaching!”

You may also like...

Other GCSE Maths questions

Find the two solutions to the quadratic equation x^2-9x+18

Factorise x^2-7x+12

Write 0.72727272 as a fraction in its simplest form

When I multiple two negative numbers together is my answer positive or negative?

View GCSE Maths tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok