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If x-a is a factor of x×x+2x+1 then find a

Posted by Rahul Rahul 5 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 5 years, 2 months ago

Put x = a

x×x+2x+1 = 0

a × a + 2 (a) + 1 = 0

a² + 2a + 1= 0

(a + 1) (a + 1) = 0

a + 1 = 0

a = -1

1Thank You

ANSWER

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CBSE > Class 09 > Mathematics