Part 06 - Collecting like term surds II | Maths Made Easy

Surds GCSE Maths Revision

Part 06 – Collecting like term surds II

Example:

Simplify -15√15-17√17-19√19-√15-√17-√19

Worked Solution:

Use the formulae m√a±n√b±o√c ≡m√a±n√b±o√c and m√a±n√a≡(m±n) √a

-15√15-17√17-19√19-√15-√17-√19=(-15-1) √15+(-17-1) √17+(-19-1) √19=

=-16√15-18√17-20√19 


Your turn:

The following expression, -7√21-√3-21√21-2√7-3√3-14√7, can be simplified to the following:

a√3-16√b-28√21

Find the value of a and b.

Enter your answer here:
a =
b =

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