Question

3x²-x-4=0 how to solve this problem ​

Answer 1

Answer:

a=3 b=-1 c=-4

b²-4ac =(-1)²-4×3×-4

= 1+48

=49

-b±√b²-4ac whole divided by 2a

-(-1)± √49 divided by 2×3

1±7 divided by 6

1+7/6. 1-7/6

8/6. -6/6

4/3. -1

so the answer is -1