Question 1107713
What equation?


Roots of the quadratic expression?

{{{y=(-8+- sqrt(8^2-4*12*(-15)))/(2*12)}}}

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You need to say what you really mean!

Trial and inspect factorization attempts give  {{{highlight_green((6y-5)(2y+3))}}}.


(tried a few different combinations before found that one which works.)