Question

как узнать квадратный корень?

Answer 1

$ax + bx + c = 0 \ d = b {}^{2} - 4ac \ x1 = frac{ - b - sqrt{d} }{2} \ x2 = frac{ - b + sqrt{d} }{2a}$

Answer 2

$ax + bx + c = 0 \ d = b {}^{2} - 4ac \ x1 = frac{ - b - sqrt{d} }{2} \ x2 = frac{ - b + sqrt{d} }{2a}$