Question

знайти корени уравнения x2+8x+16=0​

Answer 1

$\displaystyle x^2+8x+16=0\\(x+4)^2=0\\x+4=0\\x=-4$

Answer 2

Ответ:

x2+8x+16=0(x+4)2=0x+4=0x=−4