Question

baskara  resolve  2y + 3y - 90= 0

Answer 1

$2y^2+3y-90=0\\\Delta=3^2-4.2.(-90)\\\Delta=729$


$\boxed{y= \frac{-3\pm \sqrt{729} }{4} ~\to~ \frac{-3\pm27}{4} \left \{ {{y_1= \frac{-3+27}{4}=6 } \atop {y_2= \frac{-3-27}{4}=- \frac{15}{2} }} \right. }$