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OpenStudy (anonymous):
rewrite the following equation in standard form
9-7x=(4x-3)^2+5
A) 16x^2-17x+5=0
B) 16X^2-17x-5=0
C) 16x^2-31x-5=0
D) 16x^2-31x+5=0
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OpenStudy (misty1212):
\[9-7x=(4x-3)^2+5\]?
OpenStudy (misty1212):
you gotta multiply out on the right first
do you know how to do that?
OpenStudy (anonymous):
no :( I honestly have no clue how to handle this one
OpenStudy (anonymous):
@misty1212
OpenStudy (misty1212):
first job it to square
\[9-7x=(4x-3)(4x-3)+5\]
\[9-7x=16x^2-24x+9+5\]
\[9-7x=16x^2-24x+14\]
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OpenStudy (misty1212):
then add \(7x\) to both sides and subtract \(9\) from both sides to get it equal to zero
OpenStudy (misty1212):
you got it now?
OpenStudy (anonymous):
im trying to figure it out right now
OpenStudy (misty1212):
k
OpenStudy (anonymous):
its 16x^2-17x+5=0 So B Right @misty1212
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OpenStudy (misty1212):
yes
OpenStudy (misty1212):
oh not that is A
OpenStudy (misty1212):
your answer was right but your choice was wrong
it is
\[16x^2-7x+5\] like you said, but the answer choice is A
OpenStudy (anonymous):
lol I meant A thanks @misty1212
OpenStudy (misty1212):
your welcome
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OpenStudy (misty1212):
i mean "you're welcome"
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