$$(5y+4)(6y-2) = 0$$
Answer
$$ \begin{matrix}y_1 = \dfrac{ 1 }{ 3 } & y_2 = -\dfrac{ 4 }{ 5 } \\[1 em] \end{matrix} $$
Explanation
$$ \begin{aligned} (5y+4)(6y-2) &= 0&& \text{simplify left side} \\[1 em]30y^2-10y+24y-8 &= 0&& \\[1 em]30y^2+14y-8 &= 0&& \\[1 em] \end{aligned} $$
$ 30x^{2}+14x-8 = 0 $ is a quadratic equation.
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