Question

4. If f(x) = 9x^2- 7x+2 then sum of the roots is ​

Answer 1

Thanks for your question...

Your required answer :

Given :

9x² - 7x + 2

Solution :

By middle term splitting :

• 9x² - 9x + 2x + 2
• 9x ( x + 1 ) − 2 ( x + 1 )
• (9x−2) (x+1)

Roots :

• x = 2/9
• x = -1

Now their sum :

$= \frac{2}{9} + ( - 1) \\ \\ = \frac{2 - 9}{9} \\ \\ = \frac{ - 7}{9}$

Brainliest Please