Question

hey! am nevoie de putin ajutor aici.

2(x + 5)²– (x - 1)²– (x + 4)(x – 4)​

Answer 1

$2( {x}^{2} + 10x + 25) - ( {x}^{2} - 2x + 1) - ( {x}^{2} - 16)$

$2 {x}^{2} + 20x + 50 - {x}^{2} + 2x - 1 - {x}^{2} + 16$

$= 22x + 65$