MYTUTOR SUBJECT ANSWERS

429 views

How can I solve a quadratic equation by factorisation?

There are many ways to solve quadratic equations including completing the square, factorisation and using the quadratic equation.

Factorisation involves breaking the quadratic equation into two sets of brackets that when multiplied together, give the quadratic equation. For the general case without a coefficient x2+bx+c=0, the key to this is finding two numbers that add to make b and also multiply together to make c. Then you can put these numbers into the general brackets (x+c)(x+d) where c and d can be positive or negative.

You can then check this answer by using another method of solving, or by substituting the numbers into the original quadratic and both should give an answer of 0.

Tiarnan B. GCSE Chemistry tutor, GCSE Maths tutor, GCSE Geography tutor

9 months ago

Answered by Tiarnan, a GCSE Maths tutor with MyTutor


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

535 SUBJECT SPECIALISTS

£18 /hr

Isobel B.

Degree: Theoretical Physics (Masters) - University College London University

Subjects offered:Maths, Science+ 5 more

Maths
Science
Physics
Further Mathematics
Economics
Art
-Personal Statements-

“I am 20 years old and currently studying Theoretical Physics at UCL. I have a lot of experience tutoring and have a passion to help others learn.”

Roma V. A Level Maths tutor, 13 Plus  Maths tutor, GCSE Maths tutor, ...
£24 /hr

Roma V.

Degree: Mathematics, Operational Research, Statistics and Economics (Bachelors) - Warwick University

Subjects offered:Maths, Further Mathematics + 1 more

Maths
Further Mathematics
Economics

“Top tutor from the renowned Russell university group, ready to help you improve your grades.”

£22 /hr

Lucy B.

Degree: Anthropology (Doctorate) - Cambridge University

Subjects offered:Maths, Science+ 5 more

Maths
Science
Drama
Chemistry
Biology
-Personal Statements-
-Oxbridge Preparation-

“Enthusiastic Cambridge grad, with experience in Biology and Maths, passionate about helping students reach their potential and achieve the grades they deserve. ”

MyTutor guarantee

About the author

£22 /hr

Tiarnan B.

Degree: MChem (Masters) - York University

Subjects offered:Maths, Geography+ 2 more

Maths
Geography
Chemistry
-Personal Statements-

“I am a fun, open and qualified tutor. I guarantee by choosing me you will reach where you want to be and beyond, all while enjoying the subject!”

You may also like...

Other GCSE Maths questions

How to find conditional probability

Find the mid point of the line A B, where A is (8,-1) and B is (2,5).

Bag A contains £7.20 in 20p coins. Bag B contains only 5p coins. The number of coins in bag B is three-quarters of the number of coins in bag A. How much money is in bag B? (in £s)

5q^2.p^12/10(q.p^3)^2

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