Question

Factorise ris y2+y?y-1​

Answer 1

(y-1) (y+1)

y=1,y=-1

Step-by-step explanation:

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Answer 2

Answer:

The factored form is (1+y)(1-y).

Step-by-step explanation:

1-y2 The above expression can be expressed as:1-y2=12-y2. Ascper as

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