Question

4n^2-2n-90=0
Slove this equation

Answer 1

Answer:

4n² - 2n - 90

4n² - 20n + 18n - 90

4n( n - 5 ) + 18 ( n - 5 )

( n - 5 ) ( 4n + 18 )

HOPE IT HELPS

Answer 2

this is the formula for solving the roots