Question

How can I solve this 2 (z^2-9) +9z= 0?​

Answer 1

Answer:

Here don't Think Z to be a different polynomial.

Asumme it to be x and then solve the equation.2(z² - 9) +9z = 2 (x² - 9) + 9x2x² + 9x - 18

Now by Split the middle term method solve it.In the end

z = 6

Hope its HELPFUL.