Question

10y(y-4)-2(y-9)-5(y+4)=0​

Answer 1

Answer below

Step-by-step explanation:

$10Y(Y-4)-2(Y-9)-5(Y+4)=0$

$\rightrightarrows10 {y}^{2} - 40 y- 2y + 18 - 5y - 20$

$\rightrightarrows \: 10 {y}^{2} - 47y - 2$

$y = \frac{47 + \sqrt{2289} }{20} \: and \: y = \frac{47 - \sqrt{2289} }{20}$

Formula used

• Shreedhar Aacharya