leelee3214h leelee3214h

02-09-2017
Mathematics

contestada

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

Respuesta :

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

What is the word family of the word "diverge"? Can you give me a sentence to use it in? Also what is the origin

the graph that shows the volume of a sound at different frequencies is called a

Which emerged after deindustrialization? free trade manufacturing-based economy oil surplus service-based economy stagflation

More people became Buddhists after a. India became part of the Persian Empire. b. the Mauryans traded with Buddhist countries. c. Chandra Gupta’s conversion. d.

The Organization of Petroleum Exporting Countries (OPEC) controls much of the world's production of oil. If its members decide to lower their daily oil producti

Which is used to measure the length of a bicycle trail? A. km B. kg C. kmi D. kL

If you were a specialist working for the National Security Agency, your main job would likely be A. analyzing data from spy satellites. B. working in the field

a runner runs at 7.6mph for 3 1/2 hours how many miles did he run

In 1998, paleoanthropologist Rick Potts published an article in The Yearbook of Physical Anthropology, a peer-reviewed journal. The article was titled “Environm

2 (-20)+3 [5/4 (-20)]+5 [2/5 (50]+4 (50)