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Mathematics 11 Online
OpenStudy (anonymous):

@acxbox22 What number should be added to the expression x2 + 12x to change it into a perfect square trinomial? A. 36 B. 6 C. 18 D. 12

OpenStudy (acxbox22):

standard form is ax^2+bx+c=0 divide the b term by 2 (12/2) and square the result

OpenStudy (anonymous):

What?

OpenStudy (acxbox22):

divide 12 by 2 and square that

OpenStudy (anonymous):

6

OpenStudy (acxbox22):

square it

OpenStudy (anonymous):

How

OpenStudy (acxbox22):

what is 6 x 6?

OpenStudy (anonymous):

36

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