Question

(a+2)(a^2-2a+4)-(a-2)(a^2+2a+4)​

Answer 1

Step-by-step explanation:

$= (a + 2)( {a}^{2} - 2a + 4) - (a - 2) ({a}^{2} + 2a + 4) \\ = (a + 2)( {a - 2)}^{2} - (a - 2)( {a + 2)}^{2} \\ = ( {a}^{2} - 4)(a - 2 - a - 2) \\ = - 4( {a}^{2} - 4) \\ \\ hope \: it \: will \: help \: you...$