Решите уравнение (x+7)^2=(x-3)(x+3) x(x-2)-(x+5)^2=35

Question

Решите уравнение
(x+7)^2=(x-3)(x+3)
x(x-2)-(x+5)^2=35

Answer 1

(x+7)^2=(x-3)(x+3)
x²+14x+49-x²+9=0
14x=-58
x=-58:14
x=-4 1/7
x(x-2)-(x+5)^2=35
x²-2x-x²-10x-25=35
-12x=35+25
-12x=60
x=-60:12
x=-5