Question

(2+x) (2-x) (4+x^2)​

Answer 1

Step-by-step explanation:

$(2 + x)(2 - x)(4 + {x}^{2} )$

use this formula

$(x + y)(x - y) = {x}^{2} - {y}^{2}$

$(2 + x)(2 - x)(4 + {x}^{2} ) \\ = (2 ^{2} - {x}^{2} )(4 + {x}^{2} ) \\ = (4 - {x}^{2} )(4 + {x}^{2} ) \\ = ( {4}^{2} - ({x}^{2} ) {}^{2} ) \\ = 16 - {x}^{4}$