Question

10x²-18x-9=0 Square Completion​

Answer 1

Answer:

x=3

Step-by-step explanation:

Answer 2

Step-by-step explanation:

roots of polynomials is

-b ± √(b²-4ac)/2a

here

1. a is 10
2. b is -18
3. c is -9

so, the roots are 18±√(324+360)/20

that is 18±6√19/20

THEREFORE, THE ROOTS ARE,

(9+6√19)/10 AND (9-6√19)/10