Question 6

loading...

Prev/Next links

waecmaths question: 

Simplify: $\sqrt{12}(\sqrt{48}-\sqrt{3})$

Option A: 

18

Option B: 

16

Option C: 

14

Option D: 

12

waecmaths solution: 

$\begin{align}  & \sqrt{12}(\sqrt{48}-\sqrt{3})=\sqrt{4\times 3}(\sqrt{16\times 3}-\sqrt{3}) \\ & =2\sqrt{3}(4\sqrt{3}-\sqrt{3}) \\ & =2\sqrt{3}(3\sqrt{3}) \\ & =6\times 3=18 \end{align}$

maths year: 
maths topics: