leelee3214h leelee3214h
  • 02-09-2017
  • Mathematics
contestada

what is x squared plus six x minus twenty seven =0

Respuesta :

WojtekR
WojtekR WojtekR
  • 02-09-2017
[tex]x^2+6x-27=0\\\\x^2-3x+9x-27=0\\\\x\big(x-3\big)+9\big(x-3\big)=0\\\\\big(x+9\big)\big(x-3\big)=0\\\\\\x+9=0\qquad\vee\qquad x-3=0\\\\\boxed{x=-9\qquad\vee\qquad x=3}[/tex]
Answer Link

Otras preguntas

Which could be considered biochemical evidence of an evolutionary relationship? a) absence of vestigial structures b) presence of embryonic gill slits c) simi
Mr. William's physical education class lasts 7/8 hour. How many minutes are spent warming up and cooling down?How many minutes are NOT spent on instructions? Ex
Scenario: You are participating in your company’s mentoring program, and today you are working with Sarah Able, a new employee, helping her prepare for a presen
in "Beethoven's Moonlight Sonata," what is the author,s main challenge in telling the story of the Beethoven composition?
What are NOT jobs of the historians
Solve this system of linear equations. Separate the x and y values with a comma 20x=28-8y -8x=-56-8y
!!?!?!?!?!?!?!?!?!?!?!?
help plz and thanks explain to thanks! 4 and 5
Is 4/3 rational or irrational?
Ice covers most of which ocean?