Select the difference of (2x^2-13+7) - (1-12x)

please help me with this. thanks!
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1 Answer

???????????????????? "selekt the differans" ???????????

me assume yu wanna ADD

2x^2 -13+7 -(-12x+1)

become 2x^2-5 +12x-1

=2x^2 +12x-6=0

or x^2+6x-3=0

zeroes: x=0.4641016 or -6.4641016
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