Question

Решите уравнение

Ax^2=20

Answer 1

$ax {}^{2} - 20 = 0$

$d = 0 {}^{2} - 4a \times ( - 20)$

a ≠ 0

$d = 80a$

$a \: \: < 0. + \infty >$

$a = 0$

$a < 0$