Question

(√7/√7+√27-√3/√7-√27) * (1-2√21) сроооочно !!!!!

Answer 1

((√7(√7-√27)-√3(√7+√27))/(7-27))*(1-2√21)=((7-3√21-√21-9)/(-20))*(1-2√21)=(-(2+4√21)/(-20))*(1-2√21)=((1+2√21)/10)*(1-2√21)=(1-84)/10=8,3

Answer 2

Mathematical Expression Simplification

To simplify the given mathematical expression (√7/√7+√27-√3/√7-√27) * (1-2√21), we can follow these steps:

1. Simplify the expression within the parentheses first. 2. Then, perform the multiplication.

Let's start by simplifying the expression within the parentheses.

Simplifying the Expression within the Parentheses

The expression within the parentheses can be simplified step by step:

1.