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Mathematics 7 Online
OpenStudy (anonymous):

how do i factor completely? 16z^2-56z+49

OpenStudy (anonymous):

not factorable,it's just a parabola

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

are you sure?

OpenStudy (anonymous):

I got a factor of\[ (4z-7)^{2} \]

OpenStudy (anonymous):

yeah i think thats it

OpenStudy (anonymous):

\[ (4z−7) (4z-7) \]

OpenStudy (anonymous):

Use the FOIL method to check and we get 16z^2-56z+49 so it is correct

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