Question

Решите уравнение:
4^2 = x*(12 - x)
СРОЧНО!!

Answer 1

4^2 = x*(12 - x)
x^2 - 12x + 16 = 0
D = 12^2 - 4*16 = 144 - 64 = 80 = 16 * 5
x = (12 +- 4√5)/2
x = 6 +- 2√5