How do you solve #-8-8p^2=-31#?

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Answer 1 · 2017-04-24T08:13:11

#p=+-sqrt(23/8) ~= +- 1.69558#

#-8-8p^2 = -31#

Multiply through by #-1#

#8+8p^2 = 31#

#8p^2 = 31-8 =23#

#p^2 = 23/8#

#p = +- sqrt(23/8) ~=+- 1.69558#

Answer 2 · 2017-04-24T08:15:57

Rearrange your exquation to give #p=+-sqrt(23/8)#

#-8-8p^2=-31#
#-8p^2=-23#
#p^2=23/8#
#p=+-sqrt(23/8)#