Question

2x квадрат+ 5x-12=0 помогите плизз

Answer 1

D=b²-4ac=25+96=√121=11
x1=-5+11/4=3/2
х2=-5-11/4=-4

Answer 2

2x^2+5x-12=0
D=b^2-4ac=5^2-4*2*(-12)=25+96=121=11^2
X1,2=(-5+-11)/2a=1.5 и -4