Question 872325
What is the simplified form of the expression? 
8 the square root of 2 + 4 the square root of 2 - 5 the square root of 2
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Think of {{{sqrt(2)}}} as x


So {{{8*sqrt(2)+4*sqrt(2)-5*sqrt(2)}}} is the same as {{{8*x+4*x-5*x}}} when we use this definition


Combine like terms: {{{8*x+4*x-5*x = (8+4-5)x = 7x}}}


Then replace x with {{{sqrt(2)}}}: {{{7x = 7*sqrt(2)}}}


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So, {{{8*sqrt(2)+4*sqrt(2)-5*sqrt(2)=7*sqrt(2)}}}