Mathematics, 16.08.2020 01:01 val186
1. Simplify the following a) 4√12 - √50 -5√48 b) √8 × √5 ×√10 c) √45 + √180 + √80
Answers: 2
![\sqrt{8}\sqrt{5}\sqrt{10}\\\mathrm{Apply\:radical\:rule}:\quad \sqrt{a}\sqrt{b}=\sqrt{a\times b}\\\\=\sqrt{8\times \:5\times \:10}\\\\=\sqrt{400}\\\\\mathrm{Factor\:the\:number:\:}\:400=20^2\\\\=\sqrt{20^2}\\\\\mathrm{Apply\:radical\:rule}:\quad \sqrt[n]{a^n}=a\\\\\sqrt{20^2}=20](/tpl/images/0722/9830/a9bf8.png)
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1. Simplify the following a) 4√12 - √50 -5√48 b) √8 × √5 ×√10 c) √45 + √180 + √80...
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