I'm not sure how to do these equations

Use the discriminant to describe the roots of each equation. then select the best description. 2m2 + 3 = m double root real and rational roots real and irrational roots non-real roots

The train station clock runs too fast and gains 5 minutes every 10 days. how many minutes and seconds will it have gained at the end of 9 days?

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?