Question

(у - 4)(y+ 4) = 2 (5y + 4)
ПОМОГИТЕ СРОЧНО​

Answer 1

Ответ:

$y_1=-2\\y_2=12$

Объяснение:

$y^2-16=10y+8\\y^2-10y-24=0\\y_1=5-\sqrt{25+24}=5-7=-2\\y_2=5+7=12$

Answer 2

(у - 4)(y+ 4) = 2 (5y + 4)

y^2 - 16 = 10y + 8

y^2 - 10y - 24 = 0

D = 100 - 4 * (-24) = 100 + 96 = 196

y1 = (10 + 14)/2 = 12

y2 = (10 - 14)/2 = -2

Ответ: -2; 12