Question

12x²-5x - 2 = 0
решение дискриминантом :"›
помогите прошу. ​

Answer 1

$12x^{2}-5x-2=0\\\\D=25+96=121\\\\x_{1}=\frac{5+11}{24} =\frac{16}{24} =\frac{2}{3} \\\\x_{2}=\frac{5-11}{24} =-\frac{6}{24} =-\frac{1}{4}$