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Single Variable Calculus: Early Tr...

8th Edition
James Stewart
ISBN: 9781305270343

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Section
BuyFindarrow_forward

Single Variable Calculus: Early Tr...

8th Edition
James Stewart
ISBN: 9781305270343
Textbook Problem

Rewrite by completing the square.

  1. (a) x2 + x + 1
  2. (b) 2x2 − 12x + 11

(a)

To determine

To rewrite: The expression x2+x+1 by the method of completing square.

Explanation

Consider the expression x2+x+1.

Simplify the above expression as follows,

x2+x+1=x2+2×x×(12)+(12)2(12)2+1=(x+12)214+1

(b)

To determine

To rewrite: The expression 2x212x+11 by the method of completing square.

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