Question

solve the following question Q.E by using formula 2x2-x-4=0​

Answer 1

Answer:

2x2 - x - 4 = 0

2x2 - 4x - 2x - 4 = 0

2x( x - 2 ) - 2 ( x -2 ) = 0

( x - 2 ) = 0 and ( 2x - 2 ) = 0

x = 2 and x = 2/2 = -1

Answer 2

The answer is 8. .....