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 ( 18+ )
Otras preguntas
What is the main idea of Truman's statement about the use of atomic weapons
Jonathan has been on a diet since January 2013. So far, he has been losing weight at a steady rate. Based on monthly weigh-ins, his weight, w, can be modeled by
When was the battle of Hastings?
How do you do this algebra question
What is a tonal collage? We learnt it in school BUT I can't remember.
The number 6 is halfway between 4.5 and 7.5.Answer the missing numbers below.The number 6 is halfway between 2.8 and .......The number 6 is halfway between -12
A sequence has an initial value of 10 and each term is twice the previous term. Which function models this sequence?1) a(n)=10(2)^n2) a(n)=10(2)^n-13) a(n)=10+2
How is carbon dioxide obtained?
What is the main idea of Truman's statement about the use of atomic weapons
whats Henry Hudson interesting facts?
