Write the quadratic equation whose roots are 6 and 5, and whose leading coefficient is 3

y = 3x^2 - 33x + 90

Step-by-step explanation:

y = 3 (x - 6) (x - 5)

if you expand this you get

y = 3 (x^2 - 6x - 5x + 30)

y = 3 (x^2 - 11x + 30) Now use the 3

y = 3x^2 - 33x + 90

And that would be the answer.