Question

express each of the following as the difference of two squares:
(x²-5x+7)(x²+5x+7)



please tell this answer ​

Answer 1

Answer:

{x

2

+(5x−7)}{x−(5x−7)

2

}

letx

2

=aand5x−7=b

=(a+b)(a−b)

=a

2

−b

2

=(x

2

)

2

−(5x−7)

2

Answer 2

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