SOLUTION: {{{ (0-(10/(sqrt(7))))+9(sqrt(7)) }}} Can you help me solve the above equation? I know the answer, I just can't get it.

Algebra ->  Algebra  -> Radicals -> SOLUTION: {{{ (0-(10/(sqrt(7))))+9(sqrt(7)) }}} Can you help me solve the above equation? I know the answer, I just can't get it.      Log On

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Question 135909This question is from textbook
: +%280-%2810%2F%28sqrt%287%29%29%29%29%2B9%28sqrt%287%29%29+
Can you help me solve the above equation? I know the answer, I just can't get it.This question is from textbook

Found 2 solutions by solver91311, Earlsdon:
Answer by solver91311(16868) About Me  (Show Source):
You can put this solution on YOUR website!
Actually, neither I nor anyone else can "solve the above equation." That is because there is no equation. There is no equal sign anywhere in the expression, nor are there any variables. I can help you simplify the radical expression, however.

+%280-%2810%2F%28sqrt%287%29%29%29%29%2B9%28sqrt%287%29%29+
+%28-10%2F%28sqrt%287%29%29%29%2B9%28sqrt%287%29%29+

Lowest Common Denominator is sqrt%287%29, so
%28-10%2B9%28sqrt%287%29%29%5E2%29%2Fsqrt%287%29+
%28-10%2B63%29%2Fsqrt%287%29
53%2Fsqrt%287%29
Simplest form has no radicals in the denominator, so multiply by 1 in the form of sqrt%287%29%2Fsqrt%287%29

%2853%2Fsqrt%287%29%29%28sqrt%287%29%2Fsqrt%287%29%29
%2853sqrt%287%29%29%2F7 Done

Answer by Earlsdon(6287) About Me  (Show Source):
You can put this solution on YOUR website!
Well, thre's really nothing to "solve" here because you don't have an equation (no = sign), so the best you can do is to simplify this expression...is that what you wanted? Simplify:
%280-%2810%2Fsqt%287%29%29%29%2B9sqrt%287%29
-%2810%2Fsqrt%287%29%29%2B9sqrt%287%29 Rationalise the denominator of the first fraction.
-%2810%2Fsqrt%287%29%29%28sqrt%287%29%2Fsqrt%287%29%29%2B9sqrt%287%29 Simplify this.
-%2810sqrt%287%29%2F7%29%2B9sqrt%287%29=%28-10sqrt%287%29%2B7%2A9sqrt%287%29%29%2F7=%28-10sqrt%287%29%2B63sqrt%287%29%29%2F7=53sqrt%287%29%2F7