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Mathematics 23 Online
OpenStudy (tester97):

17. What value completes the square for the expression? x2 – 16x (1 point) –64 64 32 –32

OpenStudy (anonymous):

is it x^2 ?

OpenStudy (tester97):

oh yea my bad it should look like this \[x^2 -16x\]

OpenStudy (anonymous):

answer is 64

OpenStudy (anonymous):

xD so simple

OpenStudy (tester97):

I told you my brain is not working today >.< thanks bruh for the help i appreciate it so much

OpenStudy (anonymous):

hold on I did saw -ve sign

OpenStudy (anonymous):

just a moment

OpenStudy (anonymous):

-64

OpenStudy (anonymous):

sorry was on phone xD

OpenStudy (tester97):

so the answer is 64 or -64? can you tell me how you got that answer?

OpenStudy (anonymous):

x^2 - 16x we have to complete the square we'll take -16 (-16/2)^2 = 64 we'll add and subtract 64 in the eq x^2 - 16x - 64 + 64 now since we know (x)^2 + 2 (1)(-8) + (-8)^2 + 64 (x-8)^2 +64 so -64 is your answer

OpenStudy (tester97):

Ohhhhhhhhhhhhhh now i get it htnaks :)

OpenStudy (tester97):

*thanks

OpenStudy (anonymous):

my pleasure :)

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