Question

factorise (x square + 2x + 1) + 2( x square- 1)​

Answer 1

Answer:

x^2+2x-1

=x^2+2x+(2/2)^2-(2/2)^2–1

=[x^2+2x+1]-1–1

=(x+1)^2–2

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

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

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