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19 May, 22:19

Fill in the blank to make a perfect square y^2+12y+?

Answers (2)
  1. 20 May, 00:46

    Step-by-step explanation:

    We want y^2+12y+? to become a perfect square. To achieve this, take the coefficient of the y term (it is 12) and divide it by 2 (obtaining 6). Now square this 6 and add the result (36) to y^2+12y.

    You'll obtain y^2+12y+36, which is a perfect square.

    Strictly speaking, if you begin with y^2+12y+?,

    you should write y^2+12y + 36 - 36

    so as not to change the value of y^2+12y.
  2. 20 May, 00:48

    Step-by-step explanation:

    To make a perfect square we add (b/2) ^2

    where b is ay^2 + by + c

    Take b=12 then divide it by 2

    12/2 = 6

    The square it

    6^2 = 36

    Add 36
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