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OpenStudy (anonymous):
(z^2-12x+10)-(z^2-2z+15)=85 please help with this polynomial question
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OpenStudy (anonymous):
Is the x in the first bracket a z?
OpenStudy (anonymous):
no its a z
OpenStudy (anonymous):
Oh yeah on the 12 my bad that is a z
OpenStudy (anonymous):
z=-9
OpenStudy (anonymous):
Simplify to get -10z-5=85, then get -10z=90, so z=-9.
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OpenStudy (anonymous):
can u please show me the steps cause my teacher did it for me but i dont get it
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