Question

solve this (2-x)(2+x)(4+x²)​

Answer 1

Answer:

16-x⁴

Step-by-step explanation:

First apply identity (a-b)×(a+b) = a²-b²on (2-x)×(2+x) i.e.

(2)²-(x)²×(4+x²)

(4-x²)×(4+x²)

Now again apply the same identity on these both terms i.e

(4)²-(x²)²

16-x⁴

Answer 2

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

${2}^{2} - {x}^{2} = 4 - {x}^{2}$

now,

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

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

$= 16 - {x}^{4}$