Question

2 X square + X - 1 / 5 equal to zero solve by using formula

Answer 1

Answer:

(2x^2+x-1)/5=0

or,2x^2+x-1=0

or,2x^2+(2-1)x-1=0

or,2x^2+2x-x-1=0

or,2x(x+1)-(x+1)=0

or,(2x-1)(x+1)=0

therefore,either,2x-1=0

or,x=1/2

or,x+1=0

or,x=-1

Answer 2

Answer:

By Factorisation Method

$\frac{2 {x}^{2} + x - 1 }{5} = 0$

$2 {x}^{2} + x - 1 = 0 \\ 2 {x}^{2} + 2x - x - 1 = 0 \\ 2x(x + 1) - 1(x + 1) \\ (2x - 1)(x + 1) = 0$

●

$2x - 1 = 0 \\ x = \frac{1}{2}$

●

$x + 1 = 0 \\ x = - 1$

HOPE THIS ANSWER WILL HELP YOU........

Mark as brainliest.......

Follow me.....

# jasleenlehri13.....☺✌