Question

To complete the perfect square in the equation x2 - 22x+______=0 we need to add (a) 11 (b)44 (c)121 (d) 144

Answer 1

Answer:

(d) is right answer.

Step-by-step explanation:

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Answer 2

Answer:

d-144

Step-by-step explanation:

Which gives x2+22x+121=(x+11)2. Explanation: This is a process called 'Completing the Square' and does exactly ... You are trying to create a perfect square, in this case the square of a ... In 1x2+bx+c, if this is a perfect square there is always a specific ... Note that to do this, the coefficient of x2 must be 1