Question

Найдите корень уравнения!!!

Answer 1

(x+5)²-(x-3)²=0
x²+25+10x-x²-9+6x=0
16x=-16
x=-1

Answer 2

${x}^{2} + 10x + 25 - ( {x}^{2} - 6x \\ + 9) = 0 \\ {x}^{2} + 10x + 25 - {x}^{2} + 6x - 9 = 0$
$16x + 16 = 0 \\ 16x = 0 - 16 \\ 16x = - 16 \\ x = - 16 \div 16 \\ x = - 1$
Ответ:-1