Question

factorise the polynomial 2a^2 + a - 2a -1​

Answer 1

Step-by-step explanation:

the right answer is =

a= 1

a= -1/2

Answer 2

we have,

2a²+a-2a-1

= a(2a+1)-(2a+1)

= (a-1)(2a+1)

let (a-1)(2a+1) = 0

so, a = 1, -1/2 ...ans.