Question

Find the factors of the polynomial. 2x^2 + x - 1

(x + 1) (2x - 1)
(x + 1) (2x + 1)
(3x + 1) (x - 1)
(x + 1) (x - 1)​

Answer 1

Answer:

(x+1)(2x-1)

Step-by-step explanation:

2x^2+x-1

= 2x^2+2x-x-1 (MIDDLE TERM FACTORIZATION)

=2x (x+1)-1 (x+1) (TAKING 2x & -1 COMMON)

=(x+1)(2x-1) ( Answer)

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