Answer: Yes 18/30 is equivalent to 3/5 heres the picture
-3x^2 - 10x + 5 = 0
Quadratic formula:
-b +/- sqrt[b^2 - 4(a)(c)]/2(a)
So. . . 10 +/- sqrt[(10^2) - 4(-3)(5)]/2(-3)
10 +/- sqrt[100+60]/ -6
10 +/- sqrt[160]/-6
20 plus 24
Divided by 15
Which gets you to
44 over 15 or 2 wholes and 14 over 15