Math, asked by Rohitsehrawat97, 10 months ago

factorise X square + 1 by x square - 1

Answers

Answered by jainmanju887pb0tfk

0

Step-by-step explanation:

x²+x-1=0

x(x+1)-1(x+1)

(x+1)(x-1)

case 1

x+1=0

x=-1

case2

x-1=0

x=1

answers

-1,1

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