5. Indices and Surds
iGCSE (2021 Edition)
5.09 Multiplying and dividing surds (Extended)
Interactive practice questions
Is the following statement true or false?
$\sqrt{8^2}=\left(\sqrt{8}\right)^2$√82=(√8)2
True
A
False
B
Easy
< 1min
Fill in the blanks by following the example:
$\sqrt{9\times4}=\sqrt{9}\times\sqrt{4}$√9×4=√9×√4$=$=$3\times2=6$3×2=6
Easy
< 1min
Fill in the blanks by following the example:
$\sqrt{9\times11}=\sqrt{9}\times\sqrt{11}$√9×11=√9×√11$=$=$3\sqrt{11}$3√11
Easy
< 1min
Evaluate the square of $\sqrt{75}$√75.
Easy
1min
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