Question

solve by formula x square - 9 X plus 4 equals to zero​

Answer 1

Step-by-step explanation:

by using this formula,

x= [-b +(√b²-4ac)]/2a or [-b -(√b²-4ac)]/2a

x= [9+(√65)]/2 or [9-(√65)]/2

Answer 2

Step-by-step explanation:

hope this helps you better