Question

Use the quadratic formula
9x^2+3x-1=0

Answer 1

9x2+3x−1=0

Step 1: Use quadratic formula with a=9, b=3, c=-1.

x= −b±√b2−4ac

2a

x= −(3)±√(3)2−4(9)(−1)

2(9)

x= −3±√45

18

x= −1

6

+

1

6

√5 or x=

−1

6

+

−1

6

√5

Answer:

x=

−1

6

+

1

6

√5 or x=

−1

6

+

−1

6

√5