MYTUTOR SUBJECT ANSWERS

854 views

How do I simplify a surd?

To simplify a surd, remember that

sqrt(a*b) = sqrt(a)*sqrt(b)

If either a or b are square numbers, you can simply write its square root. Hence, to simplify a surd, you must look for any factors of the number inside the square root that are sqaure numbers.

For example, 

sqrt(20) = sqrt(4*5) = sqrt(4)*sqrt(5)

sqrt(4) = 2 therefore sqrt(20) = 2sqrt(5)

Hayden M. A Level Further Mathematics  tutor, GCSE Maths tutor, A Lev...

2 years ago

Answered by Hayden, a GCSE Maths tutor with MyTutor


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

584 SUBJECT SPECIALISTS

£30 /hr

Alex S.

Degree: Physics (Bachelors) - Oxford, St Peter's College University

Subjects offered:Maths, Physics+ 2 more

Maths
Physics
Further Mathematics
.PAT.

“Studying Physics at the University of Oxford. Looking to tutor maths and physics at all levels, be sure to send me a message if you have any questions!”

£20 /hr

Eszter H.

Degree: Modern Languages (Bachelors) - Durham University

Subjects offered:Maths, History+ 6 more

Maths
History
German
English and World Literature
English Literature
English Language
.MLAT (Modern Languages)

“I am Modern Languages student at Durham University, teaching English, Maths and German.”

£18 /hr

Luke B.

Degree: Mathematics (Masters) - Sheffield University

Subjects offered:Maths, Further Mathematics + 3 more

Maths
Further Mathematics
.STEP.
.MAT.
-Personal Statements-

“I am a fun, engaging and qualified tutor. I'd love to help you with whatever you need, giving you the support you need to be the best you can be!”

About the author

Hayden M.

Currently unavailable: for new students

Degree: Physics (Masters) - Warwick University

Subjects offered:Maths, Science+ 4 more

Maths
Science
Physics
Further Mathematics
English
Chemistry

“My name is Hayden. I am a 2nd year Physics student at The University of Warwick. I get excited aboutall things science and I hope that I can help you not only learn your material but alsounderstand why it is a useful thing to know.A...”

You may also like...

Posts by Hayden

How do I simplify a surd?

How do I solve a simultaneous equation with more unknowns than equations?

What if my equation doesn't factorise?

Other GCSE Maths questions

Does the function y=x^3+x+(x^2+1)e^x have a horizontal tangent?

If f(x) = 4x - 7 and f(c) = 9, find the value of c.

What is the highest common factor of 24 and 90?

How do you solve quadratic equations?

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