Question

Срочно, пожалуйста
2x^2+x-3=0​

Answer 1

a = 2, b = 1, c = -3

Дискриминат = b^2 - 4*a*c

D = 1 - 4*2*(-3) = 1 + 24 = 25

x1,2 = -b±√D/2*a

x1 = -1 + 5/4 = 4/4 = 1

x2 = -1 - 5/4 = -6/4 = -3/2 = -1,5