5. Indices and Surds
iGCSE (2021 Edition)
5.08 Adding and subtracting surds (Extended)
Interactive practice questions
Since $\sqrt{32}$√32 and $\sqrt{2}$√2 are not like radicals, $\sqrt{32}+\sqrt{2}$√32+√2 cannot be simplified. True or false?
True
A
False
B
Easy
< 1min
Evaluate to one decimal place.
Easy
1min
True or False?
$5-\sqrt{5}=\sqrt{5}$5−√5=√5
Easy
< 1min
Simplify: $10\sqrt{2}+14\sqrt{2}$10√2+14√2
Easy
< 1min
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