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Mathematics 21 Online
OpenStudy (anonymous):

(0.09y^2-0.0016)

OpenStudy (anonymous):

lol

OpenStudy (anonymous):

Delta = 0.000576

OpenStudy (anonymous):

difference of two squares.

OpenStudy (anonymous):

yea but when i work it out it tells me its wrong

OpenStudy (anonymous):

answer is \[(0.3y-.04)(0.3y+.04)\]\

OpenStudy (anonymous):

i have (0.03y+0.04)(0.03y-0.04)

OpenStudy (anonymous):

am i putting to many zeros?

OpenStudy (anonymous):

squares are confusing with decimals

OpenStudy (anonymous):

\[0.3^2=0.3\times 0.3=0.09\]

OpenStudy (anonymous):

shawna i have no idea what your answer is

OpenStudy (anonymous):

so your answer was off by a decimal for the first term

OpenStudy (anonymous):

so should it be (.03y+.04)(.03y-.04)

OpenStudy (anonymous):

no it should be \[(.3y+.04)(.3y-.04)\]

OpenStudy (anonymous):

oh i see now. what in the world was the answer shawna gave? lol

OpenStudy (anonymous):

think that was to some other question

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