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Section 1- Question 1Ryan is solving the equation - 6x = 12 by completing the square. What number should be added to both sides of the equation to complete the square?

Section 1- Question 1Ryan is solving the equation - 6x = 12 by completing the square-example-1
User Chrismarx
by
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1 Answer

6 votes

Solution:

Given the equation below


x^2-6x=12

Applying the completing the square method

Where the general form of a quadratic equation is


ax^2+bx+c=0

For the completing square method,


Add\text{ }((b)/(2))^2\text{ to both sides of the equation}

Where


b=-6

The number that should be added to both sides of the equation to complete the square is


=((-6)/(2))^2=(-3)^2=9

Hence, the number is 9 (option B)

User Neenad
by
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