Seudónimo
Seudónimo
03-07-2014
Mathematics
contestada
Solve the quadratic by factoring 2X²-2X-12=0
Respuesta :
konrad509
konrad509
03-07-2014
[tex]2x^2-2x-12=0\\ 2(x^2-x-6)=0\\ 2(x^2-3x+2x-6)=0\\ 2(x(x-3)+2(x-3))=0\\ 2(x+2)(x-3)=0\\ x=-2 \vee x=3[/tex]
Answer Link
Аноним
Аноним
03-07-2014
[tex]2x^2-2x-12=0\\\\2x^2+4x-6x-12=0\\\\2x(x+2)-6(x+2)=0\\\\(x+2)(2x-6)=0\iff x+2=0\ \vee\ 2x-6=0\\\\x=-2\ \vee\ x=3[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 68+ )
Otras preguntas
Explain, using at least three reasons, why Timothy would fail to be a good match as a mechanical engineer in the following scenario. Situation: Timothy is a ver
Sam rode a bull for 8 seconds. Maddie rode a bull for 2 fewer seconds than Sam did. How long did Maddie ride her bull?
How does Sumner try to make Butler and his position on slavery seem ridiculous?
How do I use the intermediate value theorem to prove every polynomial of odd degree has at least one real root?
need help with this pls
In Southern states like Mississippi in the 1950s, what happened when white citizens attacked their black neighbors? They were fined. They were rarely convicted.
Which of the following best describes your sequence of actions when developing a web page? Selected:a. Save the HTML file, Edit the HTML file, review the result
Why didn't the snobbish potatoes want their daughter to marry a news broadcaster
What is the essence of transcoding linear to non-linear text?
Sensory transduction of light/dark information in the vertebrate retina is accomplished by.
