Question

f ={x : x⁴- 5 x² + 6 = 0 x belongs to R​

Answer 1

Step-by-step explanation:

Factor 4x^2-49 | Mathway

Rewrite 4x2 4 x 2 as (2x)2 ( 2 x ) 2 . Rewrite 49 as 72 . Since both terms are perfect squares, factor using the difference of squares formula, a2−b2=(a+b)(a−b) a 2 - b 2 = ( a + b ) ( a - b ) where a=2x a = 2 x and b=7 .