Question

solve the following quadratic equation by using formula 2x^2-x-4=0​

Answer 1

Answer:

Step-by-step explanation:

x=(-b±√(b^2-4ac))/2a  

(-1±√(1+32))/4=-1±√33/4=

the roots are -1+√3 3/4,-1-√33/4

Answer 2

Answer:

equal=0 this formula correct