How do I simplify <msqrt> 21 </msqrt> &#x2212;<!-- - -->

excluderho

excluderho

Answered question

2022-06-25

How do I simplify 21 5 2 + 2 21 5

Answer & Explanation

Cahokiavv

Cahokiavv

Beginner2022-06-26Added 31 answers

21 5 2 + 2 21 5 = 21 5 2 + 2 ( 21 + 5 ) ( 21 5 ) ( 21 + 5 ) = 21 5 2 + 2 21 + 10 4 = 2 21 10 4 2 21 + 10 4 = 2 21 10 2 21 10 4 = 5
gnatopoditw

gnatopoditw

Beginner2022-06-27Added 5 answers

21 5 2 + 2 21 5 = 21 5 2 + 1 21 5 2 = ( 21 5 2 ) 2 + 1 21 5 2 = 2 ( ( 21 5 ) 2 4 + 1 ) 21 5 = 21 + 25 10 21 2 + 2 21 5 = 46 + 2 ( 2 5 21 ) 2 21 5 = 23 + 2 5 21 21 5 (1) = 5 ( 5 21 ) 21 5
( x , y ) ,   x y y x = x y ( x y ) = 1 ,
( 1 ) 5 ( 5 21 ) 21 5 = 5 × 5 21 21 5 = 5 × ( 1 ) = 5

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