Question

Factorization a²+a-1​

Answer 1

hey mate

here ur answer

The first term is,  a2  its coefficient is  1 .

The middle term is,  -a  its coefficient is  -1 .

The last term, "the constant", is  -1 

Step-1 : Multiply the coefficient of the first term by the constant   1 • -1 = -1 

Step-2 : Find two factors of  -1  whose sum equals the coefficient of the middle term, which is   -1 .

     -1   +   1   =   0

Observation : No two such factors can be found !!

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