Question

If x=-2, then what is 1-x+ x^2?​

Answer 1

Answer:

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Step-by-step explanation:

Answer

AnswerCorrect option isA2

AnswerCorrect option isA2Given, x+ x1 =2.

AnswerCorrect option isA2Given, x+ x1 =2.On squaring both side, we get,

AnswerCorrect option isA2Given, x+ x1 =2.On squaring both side, we get,(x+ x1 ) 2 =4.

AnswerCorrect option isA2Given, x+ x1 =2.On squaring both side, we get,(x+ x1 ) 2 =4.We know, (a+b) 2 =a 2 +b 2 +2ab.

AnswerCorrect option isA2Given, x+ x1 =2.On squaring both side, we get,(x+ x1 ) 2 =4.We know, (a+b) 2 =a 2 +b 2 +2ab.⟹ x 2 +( x1 ) 2 +2(x)( x1 )=4

AnswerCorrect option isA2Given, x+ x1 =2.On squaring both side, we get,(x+ x1 ) 2 =4.We know, (a+b) 2 =a 2 +b 2 +2ab.⟹ x 2 +( x1 ) 2 +2(x)( x1 )=4⟹ x 2 + x 21 =4−2=2.

=4−2=2.Therefore, option A is correct

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