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 ( 22+ )
Otras preguntas
What is 15 increased by a number b. In a mathematical expression
Which geographic features are associated with a divergent boundary (Can select more then one)
c9 skills check questions
The line "like sea and river" refers to A. a person drowning in his own tears B. an attempt to wash away grief C. the blending of two people's emoti
What is the best way to find a code of ethics for a certain allied health profession? 1.attend school for the allied health career of your choice 2.visit the W
Discuss the difference between generic and brand name drugs?
A cluster sample is obtained by selecting individuals who are easily contacted or those who voluntarily respond.
Which statement regarding the importance of human relations is false? A. People accomplish more in their work and personal lives when practicing good
Being tired has very similar effects on the body as ____________.
As r varies the equation (r − a.· (r − b.= 0 defines a sphere. determine the center of this sphere when a = h 3, 5, 3 i, b = h 5, 9, 7 i.
